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Subject: Re: Some facts about Deep Thought / Deep Blue

Author: Uri Blass

Date: 13:17:46 08/30/01

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On August 30, 2001 at 15:30:59, Robert Hyatt wrote:

>On August 30, 2001 at 14:27:08, Bruce Moreland wrote:
>
>>On August 30, 2001 at 10:23:28, Robert Hyatt wrote:
>>
>>>Let's stick to my boat analogy for the moment.  I'm currently running a 28"
>>>pitch prob, to reach a top speed of around 85 miles per hour.  I want to be
>>>able to outrun my friends on top-end, and I _also_ want to be able to beat them
>>>in a zero-to-sixty miles per hour race.  To do that I would probably run a
>>>24" pitch prop for better acceleration.  But I have to compromise.  best top
>>>speed might be 30" pitch, best acceleration might be at 24" pitch.  I pick
>>>something in the middle to give me the best of both words.
>>>
>>>Now for deep blue.  They had more money to spend than I do.  So they go off and
>>>build a variable-pitch prop that starts off at 22" pitch, and progresses to 30"
>>>at high rpms.  Their special hardware solution blows me away in the drag
>>>race, it blows me away in the top-end race.  And it blows me away at anything
>>>in between.  Because they didn't have to make a compromise since they were
>>>designing hardware to do _exactly_ whatever the task at hand was.
>>>
>>>In DB, they don't _need_ to make compromises as we do in software programs.
>>>Doing so would make no sense at all...  They simply do whatever they want,
>>>and they make it fast due to the hardware...
>>
>>It is also possible that since they had an engine a hundred times more powerful
>>than yours, they just used the first prop they found, and since it worked, no
>>problem.
>>
>>Now make your engine twenty times faster, but pay very careful attention to what
>>prop you use.
>>
>>Who wins?  Their engine is still faster, but perhaps they lost more than 80% of
>>their power due to the bad prop.
>>
>>We don't know, because only one boat is in the water.
>>
>>This is not to disparage DB.  Maybe they had a wonderful prop.  Nobody knows.
>>
>>To use yet another metaphor, I'm perfectly able to sense a door.  I can
>>understand that it's closed.  I can feel it.  I can knock on it.  And I can come
>>to the conclusion that if I walk into it, I'm going to break my nose.
>>
>>But what we have here is a door that doesn't exist anymore, and you're telling
>>me how I'd not only break my nose if I tried to walk through it, I'd wreck my
>>car if I tried to drive through it.
>>
>>I'd prefer to at least be able to knock on it to know that it's not made out of
>>paper.  Everyone has a right to ask for that much evidence.  Philosophy and
>>science aren't built on, "This is true, trust me".
>>
>>bruce
>
>
>I agree.  There are three positions someone can take on the DB issue.  I will
>list them and then pick the one I like:
>
>1.  DB sucks and is worse than today's micros.
>
>2.  DB is invincible and is so far above today's micros it is not worth
>    discussing.
>
>3.  There is ample evidence that older versions of the thing were invincible
>    when they were playing.  And the newest version did something nobody else
>    has repeated, yet (beating Kasparov in a match).  This leads me to believe
>    that they certainly are ahead of today's machines, until one of today's
>    machines shows some evidence of catching up to them.
>
>I fall in category 3 above.  Several fall in category 1.  Category 2 isn't
>really worth talking about.  I would personally be just as happy as anything
>if the (1) group would just remain silent.  Because (1) is not supportable by
>any evidence other than prejudice.  I think there is a lot to be learned from
>the machine, and it will be learned over time...

There are more than 3 categories.

There are people who have no opinion in the question if deeper blue is better or
worse than the best micros.

I did not say that Deeper blue is worse than today micros and I only said that
it is worse than the Deep Fritz that is going to play against kramnik.

The deep fritz that is going to play against kramnik is not a micro because it
is using 8 processors.

Uri



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