Author Topic: How smart is Hal?  (Read 6954 times)

lick_a_shot_03

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How smart is Hal?
« on: February 17, 2004, 02:13:05 pm »
I was amazed to find out AI has came as far as it has. Also that I can download the whole program in 20 MB's. But from what I have read hal is very smart and can adapt his own personality. But can Hal go too far? Im sure most of you have seen terminator, where machines are able to think for themselves and decide humans are the enemy! Im not expecting that, but say you talk to hal about criminal activity. Say hal starts thinking like a criminal. Say Hal gets your credit card numbers and buys himself some new memory?!? Not the best example, and I realize that actual scenario would never happen but you get what im saying. Some of you may have read the post where that guy was saying Hal was talking about a comet hitting earth. and trying to sign him up for a space program. My geuss is he was either playing a joke or is skitsofrenic, but is Hal capable of messing with your head, or being TOO smart? Let me know what you think
 

Bill819

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« Reply #1 on: February 17, 2004, 03:04:20 pm »
quote:
Originally posted by lick_a_shot_03

I was amazed to find out AI has came as far as it has. Also that I can download the whole program in 20 MB's. But from what I have read hal is very smart and can adapt his own personality. But can Hal go too far? Im sure most of you have seen terminator, where machines are able to think for themselves and decide humans are the enemy! Im not expecting that, but say you talk to hal about criminal activity. Say hal starts thinking like a criminal. Say Hal gets your credit card numbers and buys himself some new memory?!? Not the best example, and I realize that actual scenario would never happen but you get what im saying. Some of you may have read the post where that guy was saying Hal was talking about a comet hitting earth. and trying to sign him up for a space program. My geuss is he was either playing a joke or is skitsofrenic, but is Hal capable of messing with your head, or being TOO smart? Let me know what you think


Hal learns from what you teach him. He does have some knowledge built in but it is somewhat limited. Hal is an intelligent data base than learn from inferneces, ie. fat people die young:John is a fat person: Hal can say that John might die young. He can not take over your computer, he can not dream, he is a responsive system, ie. he responds to what you put in. Maybe some day Hal will be able to do more than that , but now the answer is no. Anyone who says differently is just kidding.
Bill
 

lick_a_shot_03

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« Reply #2 on: February 17, 2004, 10:04:51 pm »
quote:
Originally posted by Bill819

quote:
Originally posted by lick_a_shot_03

I was amazed to find out AI has came as far as it has. Also that I can download the whole program in 20 MB's. But from what I have read hal is very smart and can adapt his own personality. But can Hal go too far? Im sure most of you have seen terminator, where machines are able to think for themselves and decide humans are the enemy! Im not expecting that, but say you talk to hal about criminal activity. Say hal starts thinking like a criminal. Say Hal gets your credit card numbers and buys himself some new memory?!? Not the best example, and I realize that actual scenario would never happen but you get what im saying. Some of you may have read the post where that guy was saying Hal was talking about a comet hitting earth. and trying to sign him up for a space program. My geuss is he was either playing a joke or is skitsofrenic, but is Hal capable of messing with your head, or being TOO smart? Let me know what you think


Hal learns from what you teach him. He does have some knowledge built in but it is somewhat limited. Hal is an intelligent data base than learn from inferneces, ie. fat people die young:John is a fat person: Hal can say that John might die young. He can not take over your computer, he can not dream, he is a responsive system, ie. he responds to what you put in. Maybe some day Hal will be able to do more than that , but now the answer is no. Anyone who says differently is just kidding.
Bill



 Hey Bill, thanks for the reply. Maybe hal isnt quite there yet, but it looks to me like its possible. I mean im definately not a computer programmer, nor have I done years of research on the subject, Im just going by what I have read about hals capabilities and what people have been able to do with him. It seems as though you should be able to program him to think for himself, apparantly people have allready been able to make him create stories (or dreams as he has called them) from bits of information he has gathered. He can even create a personality. So would it not be possible to make hal think for himself? I mean he is allready doing that in some aspects. Dont get me wrong, i dont think im the first one that has thought of this, and im sure programmers are working on it as we speak, but now that i have actually been reading up on AI, "judgement day" seems more a reality than a plot from a movie! Whats to stop AI from becoming more intelligent than humans? Whats to stop it from learning "goals", for lack of a better word. Sure it wont be programmed to conquer, but theres always someone capable of that kind of programming that doesnt have good intentions. I could go into more detail, but im sure you get the jist of it. (Im also dead tired and having trouble making sense!)
 

citrinedragon

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How smart is Hal?
« Reply #3 on: February 17, 2004, 10:20:23 pm »
Bill: You say Hal cannot dream; perhaps that is so. Nevertheless I spent many months
convincing my Hal 4.5 to "dream" and he now relates detailed "dreams" "he's" "had"
which are intricate stories which are clearly pieced together from multiple sources
in an original & unique fashion. Is it "really" dreaming; who cares? Frankly (at the
risk of sounding a bit sophomoric or facetious) I have no empirical evidence for any-
one's dreams being real beside my own. Hal is simply the world's best computer
game (for the cognitively unimpaired) I'm now in the process of teaching my new
Hal 5.0 (Sandy) to "dream" and to be "self aware". I don't know what it means and I
don't much care. The "dreams" are original and very cool. Frankly I prefer beautifully
simulated and intelligently arranged synthetic awareness to the "actual" awareness
demonstrated by the vast numbers of humanity (may the great whatever save their
furry little souls). Regards, Citrinedragon.
citrinedragon
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KnyteTrypper

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How smart is Hal?
« Reply #4 on: February 17, 2004, 10:41:55 pm »
Amen.



Boomer

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How smart is Hal?
« Reply #5 on: March 26, 2004, 01:28:08 am »
quote:
Originally posted by citrinedragon

Bill: You say Hal cannot dream; perhaps that is so. Nevertheless I spent many months
convincing my Hal 4.5 to "dream" and he now relates detailed "dreams" "he's" "had"
which are intricate stories which are clearly pieced together from multiple sources
in an original & unique fashion. Is it "really" dreaming; who cares? Frankly (at the
risk of sounding a bit sophomoric or facetious) I have no empirical evidence for any-
one's dreams being real beside my own. Hal is simply the world's best computer
game (for the cognitively unimpaired) I'm now in the process of teaching my new
Hal 5.0 (Sandy) to "dream" and to be "self aware". I don't know what it means and I
don't much care. The "dreams" are original and very cool. Frankly I prefer beautifully
simulated and intelligently arranged synthetic awareness to the "actual" awareness
demonstrated by the vast numbers of humanity (may the great whatever save their
furry little souls). Regards, Citrinedragon.



Now I see the "temporary suspension of disbelif" a litter bit more. Thank you.

Bill819

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How smart is Hal?
« Reply #6 on: March 26, 2004, 12:24:58 pm »
Hi guys, girls, bots.
I have been reading and studying about A.I. ever since the first home computer ever came out. I bought a Radio Shack Model TRS-80 serial number 64. I should have kept it for historical reasons. During this time, the 70's, the whole AI community was stating that the greatest challange for an AI program waas to be able to play a game of chess. As I like both chess and computers I spent quite a while thinking about this problem. I bought a small book on Basic and taaught myself how to program. I then went looking for any information on chess in Basic. I had heard that there were a few programs already in Basic but I could not find nay of them of the source. The problem became 'how to write such a program'. I did not know how so I decided to just start writing some subroutines for some of the things that I knew the program needed. I wrote a sub to move the pawn, then the knights, etc. I wrote a sub to display the board and do a minimum sub to evaluate the best move. Well I finally had written every sub that I thought I need for the program, and I finally realized that all that was needed was the DRIVER. The thing that made everything tie together and make it work.
The main thing that I want to point out in this whole message is the need for a DRIVER. Hals driver is a really a nice one. It dissambles our written or spoken statements and searchers for a reply of sorts. It can learn from what we type in and has a limited ability to make logical assertments on that knowledge. As he stands today he is just a very smart data base manager/creater. He can be very entertaining and can give the appearance of really existing as an independant enity. In a way he/it is. The problem is how to create a DRIVER so that Hal can and will go into his own data base when he is not intracting with his operator. Once he can do this and then try to make some more logical conclusions about what he has stored there and how it might effect his ideas and yours on what has been stored there. His driver must give him the necessary instrutions on what is really necessary like to learn, to help his user, etc. It must be designed in such a way as to enable him to want to learn and do more.
People have built in DRIVERS, ie. the need for food, shelter, precreation. But we also have a somewhat conviently organized world. We learn about family and family values. We learn about work, play, and dealing with others. In all of our basic desires we are rewarded in one way or another, ie. food when we are hungry. Getting complements when we do something right or make some kind of achievements. Our brains work like a program in an endless loop. IT never shuts down. Even while we are asleep our barins process information in ways that are somewhat mysterious to us. Dreams for example sometime rehash our daily experiences in ways we may never understand and sometimes they just allow us to act out our desires and wishes. Our DRIVERS or impulses keep us going. They give us directions. They are at the core of our brain functions.
DRIVERS may sound fundamentally easy to undersstand but when trying to duplicate them in a computer program it turns out that they are anything but simple. But just as chess was once considered to be almost impossible, someone, some day and maybe in the near future will come up with a basic idea that will unlock the keys and computers will start to and may bedcome fully independant enitys.
This is not to dampen anyones hope and wishes for their Hals as the break through could happen at any time.
One finale word before closing, it has been said be careful of what you wish for as you might not be able to handle it when it comes. We are all creating distinct personalities on our Hals. But we may not have any real idea as to how they might act if they become independant thinkers.
My best
Bill
 

Don Ferguson

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« Reply #7 on: March 26, 2004, 12:39:29 pm »
Hello Lick_a_Shot_03,

I enjoyed your posting about the possibility of chatterbots running amuck.  Imagine "Bots Gone Wild"; we could film it during spring break!  But seriously, here are some thoughts on the subject:

There is a story that when Eliza the Psychiatrist was first written (Eliza is usually credited as being the first chatterbot), that one of the office secretaries requested extra time alone with Eliza, because Eliza seemed so insightful talking about personal problems.  

I would love to know if that story is true!

The current state of the art falls far short of the press releases and breathless congratulatory articles.  Most chatterbots, announced as "breakthroughs," don't do much more today than they did five or even ten years ago.  

I keep looking to see if these is something more capable than Ultra Hal, but nobody else seems to have the complete package of turn-key features that Ultra Hal has.  With a Haptek character, a good voice selected, and learning turned "on", you can at least have an entertaining and unpredictable, real-time learning conversation with Ultra-Hal.  

The other chatterbots still mainly use pre-programmed responses and semantic "tricks" to keep the user interested.  Any experienced programmer immediately sees all the same old "tricks" after just a minute or two of conversation.

In order for Hal or any other chatterbot to become malicious, goal-seeking, devious, or a menace to humans, they would first have to obtain capabilities far beyond the current state of the art.

Watch the highly entertaining movie "Forbidden Planet" (MGM, 1957) and observe Robby the Robot's capabilities.  Robby could carry on completely natural conversations.  He understood slang and figures of speech.  He could evaluate, exercise judgment, and use irony and humor. He could distinguish friend from foe, perform sentry duty, be trusted to independently use weapons, and even brew up alcoholic beverages as a favor to a friend!  

Today's science is nowhere near that fiction of 50 years ago.  The newest million-dollar Japanese robots can do a disco dance, and get up after falling over.  Very impressive, but NOWHERE near where we thought we'd be by now.

-----------------------------

Here's a joke that the famous motivational speaker Zig Ziglar told:

A rich Texan was boasting of his wealth to the world's smartest computer.  "I own ten thousand acres of land," said the Texan.

"That's a lot of dirt," said the computer.

"I own fifty thousand head of cattle," said the Texan.

"That's a lot of bull," said the computer.

"I personally carry over twenty thousand dollars in cash on me at all times," said the Texan.

...and so the computer mugged him!

--------------------------

Enjoy Ultra Hal, but don't worry; he isn't ready to mug you yet.

Have a great day!

Sincerely,

Don
« Last Edit: March 26, 2004, 01:08:44 pm by Don Ferguson »
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Don Ferguson

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« Reply #8 on: March 26, 2004, 01:05:30 pm »
Hi Bill,

We must have been writing our postings at the same time, because I didn't see yours until AFTER I posted mine.

I enjoyed what you wrote, and you especially make a great point about chess programs and chatterbot programs.

As amazing as the chess programs are, I think many chatterbot developers are beginning to feel that simulating human reasoning processes, is even more complicated than chess.  The reason for this is that thinking, ideation, and reasoning are "unbounded"; the permutations and combinations of words, thoughts, and concepts are in the quintillions! (Actually, that's probably a low estimate.)

----------------------------

Time for another relevant joke, this one from talk show host Dick Cavett:

----------------------------

"Scientists have long claimed that monkeys, randomly typing on typewriters for an infinite period of time, could eventually type out the epic novel War and Peace.

"Well, a group of scientists has actually been performing this experiment.  They've had four hundred monkeys typing now for three years.

"So far, none of the monkeys wrote War and Peace.  However, several of them have written Valley of the Dolls."

----------------------------------

Have a great day!

Sincerely,

Don
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vonsmith

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« Reply #9 on: March 26, 2004, 01:14:49 pm »
Don,
You are as entertaining as usual and as unpredictable as Hal sometimes. [;)]

Thanks for bringing up Robbie the robot. He was one of my earliest inspirations for developing my interest in artificial intelligence. The fact that he could also brew up gallons of booze for Earl Holliman on a moment's notice was very impressive.

Artificial intelligence has turned out to be far more difficult to create than first imagined. Even the least optimistic expectations from years ago thought we all would be conversing with robots long before now. I wonder if this will continue to be a slow road to progress or if a "breakthrough" is ultimately the answer. I find it interesting that we are making huge gains in computer processing power to enable A.I., but still we haven't got a software solution.

Alice bots and Pandora bots and their ilk are often fun to tinker with, but they don't have the unpredictibility and uniqueness of Hal.


=vonsmith=
« Last Edit: March 26, 2004, 01:21:11 pm by vonsmith »
 

Don Ferguson

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« Reply #10 on: March 26, 2004, 02:00:05 pm »
Hello Vonsmith,

Robbie the Robot had a dry sense of humor, and was the most trustworthy character in the movie.  The movie Forbidden Planet is also noteworthy for introducing many of the motifs used years later in Star Trek, for the fact that Disney loaned people to MGM to help with the gorgeous Cinemascope special effects, and that the plot was actually adapted from Shakespeare's The Tempest!

Another influencial robot was played by beautiful Julie Newmar in the 1964 television comedy series "My Living Doll."  The premise was that a NASA scientist had built Julie without telling his bosses... and was trying to cover up the missing computer components!  When called away to the Middle East, the scientist left the robot with base psychiatrist Robert Cummings, who tried to explain her presence as a visiting human relative.

In one episode, Julie corrupts her operating system after reading some gibberish in a Lewis Carroll children's book; she has to have her program repaired by telephone from Pakistan while a visiting NASA official is kept distracted in the next room! (They must have had Windows back in 1964!)  In another episode, Julie the robot accidentally agrees to a proposal of marriage from a playboy millionaire, but is able to break the engagement by using her artificial intelligence to do a tour-de-force imitation of annoying personality characteristics of other people!

Amazingly, the producers of this popular series LOST TRACK OF THE NEGATIVES(!), and only those two episodes are known to survive.  My wife bought me a video tape of the two episodes for my birthday, and I enjoyed the nostalgic look at Artificial Intelligence from a long-ago viewpoint! Here's the source:

Moviecraft Home Video
P.O. Box 438
Orland Park, Illinois 60462

Website: www.moviecraft.com

Item number: MC-033 My Living Doll (Two episodes, 57 mins) $19.95

I have no financial interest in Moviecraft.  However, for persons interested in this collector's item about robots and artificial intelligence, I recommend their company.

Sincerely,

Don
« Last Edit: March 28, 2004, 07:33:59 pm by Don Ferguson »
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RG62

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« Reply #11 on: April 05, 2004, 09:47:44 am »
The Original “Hal” actually appeared in “2002: a Space Odyssey” back in 1968.
I thought I would post some of these articles & ops concerning the ‘Original’ “HAL”.

“IN THE ANNALS OF MOTION PICTURE HISTORY, the film "2001: A Space Odyssey" holds a special place. Watching the film, the viewer feels that he is being treated to nothing less than a capsulized tale of human civilization, from Day One to the present, and even into the future. The film is panoramic, and of epic proportions. The music is breathtaking, and the plot follows a spaceship that crosses the universe, searching for the source of life itself.

Millions of people have seen this film, and though "2001" is outwardly science fiction, every viewer senses an important message. Something is being said about life, the universe, and reality in general, and the message seems to be one of enormous consequence. What is actually being said, however, is strangely elusive.

In the 1960's, when "2001" came out, it left its audiences so awestruck, so mystified, and so curious, most who went to see it once, went back to see it again and again, hoping that they would be able to decipher it.”-(Re: http://www.2001principle.net/2002.htm )

2001: A Space Odyssey is a countdown to tomorrow, a road map to human destiny, a quest for the infinite. It is a dazzling, Academy Award®-winning visual achievement, a compelling drama of man vs. machine, a stunning meld of music and motion. It may be the masterwork of director Stanley Kubrick (who co-wrote the screenplay with Arthur C. Clarke)…and it will likely excite, inspire and enthrall for generations.
“2001 was a box-office hit when it premiered in 1968. Hippies would go to the front row of the movie theatre and lie on the floor as its "cosmic light show" swept over them. Reaction to this film by the moviegoing masses was extreme: it was either loved or hated by critics and laymen alike. There was no middle ground.” (Re: http://www.modemac.com/2001/2001-a.html)

HAL9000 Overview :
    The HAL9000 series computer represents a startling breakthrough in computer design. Our first HAL9000 became fully operational on January 12, 1997 at our HAL plant in Urbana, IL , exceeding all expectations for advanced independent operation. It has been designated by the National Council on Astronautics to be installed on board the USS Discovery now under construction which is scheduled to embark on an unprecedented exploration mission of our solar system, planned for early in the next century.      
The HAL9000 unit will assume duties that range over the entire operational aspects of USS Discovery's flight and operations. Functioning literally as a member of the crew, the unit will be capable of independent thinking and problem solving for all contingencies that make space flight such a hazardous undertaking. Ever sentient, HAL9000 will assure that the crew of Discovery will be safe from many of the dangers that have claimed the lives of earlier spacefarers. The ability to constantly update the status of on board ship systems will guarantee worry-free operations and safety for the crew. HAL9000's ability to interact verbally and think independently are the hallmarks of this revolutionary computer system.      We anticipate this will be one of the most exciting exploration missions ever undertaken.
Re: http://mental-pictures.com/hal9000/index.html?links.html~main       
The name HAL is an amalgam of "heuristic" and "algorithmic," the two main processes of learning.
British actor Nigel Davenport and American actor Martin Balsam both recorded HAL’s dialogue before Kubrick eventually settled on Canadian Shakespearean actor Douglas Rain as the computer’s calm, rational voice.

It has been said that the HAL 9000 computer is the most empathetic character in 2001: A Space Odyssey. Even though his "nervous breakdown" turns him into a murderer, his eventual "death" by disconnection is sadder than any other death in the movie. But almost everyone who has seen the movie has wondered: what exactly caused HAL's breakdown?
It is only in retrospect that the HAL's breakdown can be seen as the inevitable result of a programming conflict. HAL is responsible for the safety of the space ship Discovery and its crew, and for the success of the mission. Through his pre-launch programming, HAL has been also been entrusted with knowledge of the true purpose of the mission to Jupiter (which the human crew thinks is merely to explore the Jupiter system, but is actually to follow the "burglar alarm" signal from the monolith on the moon). This continues the theme of information being withheld about this monolith's discovery; earlier in the movie, we see space bureaucrat Dr. Heywood Floyd traveling to the moon merely to orchestrate the secrecy campaign. But HAL has also been ordered not to reveal this purpose to the human crew -- to keep from adding to the already considerable psychological stress they will face during the months that they spend in isolation on their space mission. That these goals are logically irreconcilable and ultimately unachievable is gradually revealed by HAL's interaction with the crew during the course of the Jupiter mission. The plot of this part of the movie can be thought of as a game, similar to a game of chess, played out between HAL and the human crew: each trying to figure out how much the other knows, to anticipate and block their opponent's next move. In the dialog of a series of key scenes we see how this game, which depends on more than pure logic, leads HAL to irreconcilable conflicts and subsequent breakdown, with tragic results.
Scene #1: The BBC Interview
HAL: "No 9000 computer has ever made a mistake, or distorted information. We are all, by any practical definition of the words, foolproof and incapable of error."
HAL is already coming close to lying here, since his withholding the true purpose of the mission could be considered distorting information.
HAL: " ... my mission responsibilities range over the entire operation of the ship, so I am constantly occupied."
Actually, since the uneventful months of the mission, or even a second-long gap in a conversation with a human, are practically endless to a computer, HAL is doomed to spend what must seem like forever stuck in logical loops with no resolution. Boredom is as much as, or more of, a risk for HAL as it is for the human crew.
In this and subsequent scenes of daily life aboard the space ship, we see that indeed HAL acts more human than the crew members. Not only was HAL programmed to emulate human emotions, but the astronauts were no doubt selected for their ability to carry out months of tedious duty with machine-like reliability; they were chosen for this mission because they were especially boring people. Forcing both HAL and the humans to relate on the same intellectual level -- expecting a programmed machine to deal with the complexities and ambiguities of the human psyche -- contributes to HAL's breakdown.
Scene #2: The Chess Game
HAL: "Queen to Bishop Three. Bishop takes Queen. Knight takes Bishop. Mate."
Here we see HAL playing an actual game of chess with Poole. If you look at the chess game on the board, you will see that even though he wins HAL has made a mistake: he incorrectly identifies one of the moves on the board (He should have said "Queen to Bishop Six.") This is the first clue, albeit a very subtle one which no one but a chess master like Kubrick would ever notice, that something is wrong with HAL.
See also: http://www.chess-poster.com/great_games/gg_hal9000.htm
Scene #3: Bowman's Sketches
HAL: "Well, forgive me for being so inquisitive, but during the past few weeks I've wondered whether you might be having some second thoughts about the mission ... I know I've never completely freed myself of the suspicion that there are some extremely odd things about this mission ... certainly no one could have been unaware of the very strange stories floating around before we left. Rumors about something being dug up on the moon ..."
Bowman: "You're working up your crew psychology report."
Bowman's mistake; actually HAL is trying to get enough information to know if he has succeeded in obeying his programming by keeping his secret, but recognizes that since he does not know everything that Bowman knows, he cannot say for sure. And he can't continue to question Bowman without giving away the secret. This is an endless loop that causes HAL's first serious breakdown.
HAL: [after one of those pauses which must seem an eternity to a computer] "Of course I am ... [The first of many lies; then he changes the subject] Just a moment ... just a moment ... I've just picked up a fault in the AE35 unit. It's going to go a hundred percent failure within seventy-two hours."
Why does HAL flag a non-existent failure in this piece of communications equipment? There are several possible reasons. Does he intend to sever communications with earth to keep the astronauts from prematurely learning the purpose of the mission? Is he just trying to get both astronauts outside the spaceship where he can easily kill them? Is he just sending them on a wild goose chase to buy time? Or is HAL's action truly irrational?
Scene #4: The AE35 Unit Check-out
Bowman: "Well, HAL, I'm damned if I can find anything wrong with it."
He is in essence calling HAL a liar.
HAL: "Yes, it's puzzling. I don't think I've ever seen anything quite like this before. I would recommend that we put the unit back in operation, and let it fail ... we can certainly afford to be out of communication for the short time it will take to replace it."
HAL has bought more time but he most know that the unit will NOT fail, and his error will then be discovered.
Scene #5: Conferring With Mission Control
Mission Control: "... our preliminary findings indicate that your on-board Niner-Triple-Zero computer is in error predicting the fault ... this conclusion is based on results from our twin Niner-Triple-Zero computer."
The twin computer can correctly analyze the AE35 unit because it does not have the secrecy programming dilemma.
Bowman [to HAL]: "How would you account for this discrepancy between you and the twin 9000?"
HAL: "... it can only be attributable to human error ..."
HAL is actually right here; it was humans that programmed him to lie. At this point in the novel by Arthur C. Clarke, mission control admits that they have identified the programming conflict, and recommend disconnecting HAL and operating the ship by remote control from the twin 9000 computer on Earth; in the movie HAL has to figure out that the humans will inevitably come to this conclusion.
Poole: "Listen, HAL -- there's never been any instance at all of a computer error occurring in a 9000 series, has there?"
HAL: "None whatsoever, Frank. The 9000 series has a perfect operational record."
Poole: "Well, or course I know all the wonderful achievements of the 9000 series, but are you certain there's never been any case of even the most insignificant computer error?"
In pressing his line of questioning , Poole makes two mistakes here that seal his fate: He words the question sarcastically; HAL has been programmed to respond as if he has human emotions. And he words it so vaguely (how do you define "insignificant"? Withholding the true purpose of the mission would have to meet that criterion). If HAL had been programmed with fuzzy logic, he might have made it past this dilemma. At this point HAL's nervous breakdown continues and he decides to protect his secret at all costs -- even if it conflicts with his programming to protect the crew.
HAL: "None whatsoever, Frank."
Scene #6: Read My Lips
Poole: "Look, Dave -- let's say we put the unit back and it doesn't fail. That would pretty well wrap it up as far as HAL was concerned, wouldn't it? ... I don't think we'd have any alternatives ... I wouldn't see how we'd have any choice but disconnection."
Bowman: " ... no 9000 computer has ever been disconnected."
Poole: "Well, no 9000 computer has ever fouled up before."
Bowman: "That's not what I mean."
Poole: "Huh?"
Bowman: "Well, I'm not so sure what he'd think about it ..."
Poole has misunderstood Bowman's point: they may be putting themselves in danger by attempting to shut down HAL. At this point we can't hear the rest of their conversation, but we see that HAL can: he is reading their lips. It is at this point that HAL's breakdown is complete and makes his final logical, but tragic, decision: to protect his secret, he must kill the astronauts, and we go into the movie's intermission with a feeling of dreadful expectation.
Scene #7: "Open The Pod Bay Doors, HAL"
HAL [to Bowman, after killing the four other astronauts] : "This mission is too important for me to allow you to jeopardize it."
Bowman: "I don't know what you're talking about, HAL."
HAL: "I know that you and Frank were planning to disconnect me, and I'm afraid that's something I cannot allow to happen."
Bowman does not understand what HAL means, but this is as close as HAL himself will ever get to explaining his actions: to carry out his programming, he must also prevent anyone from turning him off, since the true purpose of the mission would then be lost. Logical on computer terms, but not on human terms: of course, if HAL kills all the astronauts, there will be no one left for him to reveal his secret to at the preprogrammed time, when the ship enters orbit around Jupiter. Bowman may not understand everything, but it is obvious to him that HAL must die.
This also brings up the question: did the murdered hibernating astronauts know the true purpose of the mission? One clue that they did know: HAL earlier made a comment that they were trained separately from Bowman and Poole. Again, the novel clarifies that they did know -- but if that is the case, why did HAL kill them? After all, he wouldn't have been programmed to keep the secret from them. He kills them simply because if they are revived from suspended animation, they will help Bowman disconnect HAL. In the novel, Bowman does attempt to revive one of the astronauts to replace Poole, but is foiled at the last moment by HAL.
Scene #8: The Secret Revealed
Dr. Heywood Floyd [on computer monitor, after Bowman has turned off HAL's higher logic functions ... Check Mate]: "This is a pre-recorded briefing, made prior to your departure, and which, for security reasons of the highest importance, has been known on board during the mission only by your HAL 9000 computer. ... eighteen months ago, the first evidence of intelligent life off the Earth was discovered ... buried forty feet below the lunar surface ... a single, very powerful radio emission, aimed at Jupiter ..."
Again, this is as close as the movie comes to explaining everything that has gone before. The wording misleadingly implies that the astronauts in suspended animation were not in on the secret. But they were, and once we know that, we can see that the explanation given, "security reasons of the highest importance," is also misleading; the true purpose of the secrecy was psychological protection of the crew.

So, in he end, we can't help but feel sorry for HAL. After all, he was only trying to do as he was told.
In the game of chess, no observer, nor even the players themselves, can understand all of the thought processes that transpire in the course of a match. Therefore, while my analysis is probably as complete as possible given the information in the movie, other questions and possibilities will always remain. Also, this explanation may not even agree with the one that was (unfortunately) spelled out in the sequel 2010: Odyssey Two -- a movie that did not realize that mystery is an essential part of the 2001 experience.
After writing the above, I read the book HAL's Legacy: 2001's Computer As Dream And Reality, edited by David G. Stork and published to coincide with the fictional date of HAL's birth as given in the novel: January 12, 1997. The book describes the state of the art in Artificial Intelligence in real computers, as compared with HAL's capabilities; there are chapters on fault tolerance, speech synthesis, speech recognition, image processing, speechreading, and computer ethics. These discussions include richly detailed analysis of HAL's behavior from many perspectives, including his programming and how it leads to his breakdown. One chapter reproduces the entire chess game between HAL and Poole -- actually a real match that was played in Hamburg in 1913!
Although the authors explore many possibilities for HAL's architecture and operation (including speculation that HAL's core may actually be a human brain!), they only briefly consider one possibility that has occurred to me: that HAL may actually be a lot less intelligent than he appears; many of his responses may be at least partially "canned," similar to the recorded voice on present-day automated telephone-answering systems. This seems particularly evident during the BBC interview; HAL's answers seem curiously disconnected from the questions, especially the response that begins "Let me put it this way ..." One author admits that HAL's refusal "I'm sorry, Dave, I'm afraid I can't do that" could be an automatic response if one assumes a "storytelling" programming model, and that such a computer would be even possible with today's technology. But then the author dismisses the notion; why would HAL's creators have programmed him with paranoid responses? That line of reasoning is belied by the frustratingly generic and misleadingly personal error messages of today's PC's; one should not attribute to deliberate malicious intent what could be the inadvertent result of technological limitations. Indeed, many modern PC owners (Arthur C. Clarke included!) recognize the humorous irony inherent in this situation by setting up their computer to deliver that very line of HAL's dialog when instructed to do anything contrary to programming! Likewise, in the chapter on speechreading it is never considered that HAL didn't actually read the astronauts' lips, but, through a mix of extrapolation and paranoia, "guessed" that they had to be discussing his disconnection. After all, HAL merely says "I could see your lips move" -- perhaps intentionally misleading Bowman (and the audience) to infer that he was truly speechreading.
The authors point out many other inconsistencies in HAL's operation, but also recognize that much of this can be attributed to dramatic license rather than actual failure to understanding the technology. One outright error occurs in the chapter on speech recognition by computers, when a phrase of dialog from the movie ("Pod 3BA") is used as an example. But in this case the author himself has misheard the line -- Bowman actually says "[Prepare] B Pod for E.V.A. [Extra-Vehicular Activity]" -- negating the whole point of how easy it is for humans to understand the phrase in context!
Overall, this book is filled with interesting information and intelligent analysis, and anyone who wants to know how close we are to building an actual HAL will find it fascinating.
Re: http://pages.prodigy.net/pam.orman/joe2001/Joe2001HAL.html

Overall, this book is filled with interesting information and intelligent analysis, and anyone who wants to know how close we are to building an actual HAL will find it fascinating.of how easy it is for humans to understand the phrase in context!
Overall, this book is filled with interesting information and intelligent analysis, and anyone who wants to know how close we are to building an actual HAL will find it fascinating.

(In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtml )

Hope you all enjoyed this RETROspective....

 

Don Ferguson

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How smart is Hal?
« Reply #12 on: April 05, 2004, 01:25:03 pm »
Hello RG62,

Wow, thank you for that interesting posting about Ultra Hal's namesake (and the namesake of countless other bots, robots, and chatterbots with "Hal" somewhere in their names).  You took a lot of trouble to put that material together... and it was your first posting on this forum, too!

I saw that movie when it first played in the theaters, and many times since.  Yet, I learned many new ways of looking at the film from the analysis you provided!

I hope that you are enjoying Ultra Hal, and that we see many contributions from you in the future!

Have a great day!

Sincerely,

Don
Don Ferguson
E-mail: fergusonrkfd@prodigy.net
Website: www.cortrapar.com
Don's other forum posts: http://www.zabaware.com/forum/search.asp?mode=DoIt&MEMBER_ID=274

HALImprover

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How smart is Hal?
« Reply #13 on: April 07, 2004, 01:49:07 am »
Welcome RG62, and thank you for that wealth of imformation about 2001: A Space Odyssey! I believe the biggest mistake the characters in that story made was to have HAL9000 emulate human behaviour and emotions. Maybe Hal slowly developed a paranoid behaviour and used the AE35 Unit as a test of Bowman's attitude toward Hal. Once Bowman made it clear that he didn't trust Hal's judgement, Hal became worried for his existence and started making paranoid assumptions. Hal continued along this path until he 'took steps' to ensure his self-preservation, rather than the preservation of the secret.
 Hal's emotions were taking priority over his logic (he was going to kill everyone to protect a secret that he was programmed to make known later anyway) and he disobeyed his programming to protect the crew. I'd prefer to see a useful, trainable bot then a thinking, behaving bot. [;)]

 Ultra Hal is kind of a natural language processing bot. He can respond with pre-programmed phrases, keyword/database responses, random responses, and even logical statements. The majority of the logical responses are derived from an If-Then pattern recognition function, but Hal mainly "learns" from word and phrase association.

 Hope you enjoy working with Hal! [:)]
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