Comment author: wantstojoinin 09 May 2012 09:53:32AM *  3 points [-]

Why isn't building a decision theory equivalent to building a whole AI from scratch?

Comment author: gRR 30 April 2012 10:34:09AM *  1 point [-]

n%3=0 is distinguishable from n%3=1∨n%3=2. If A="n%3=0", B="n%3=1", and C="n%3=2", then an isomorphism f that maps B∨C to A must satisfy f(B∨C) = f(B)∨f(C) = A, which is impossible.

Comment author: wantstojoinin 01 May 2012 02:56:44AM 0 points [-]

I understand, what I wrote was wrong. What if we use n%3=0 and ~(n%3=0) though?

Comment author: wantstojoinin 30 April 2012 09:06:33AM *  0 points [-]

A natural number n can be even or odd: i.e. n%2=0 or n%2=1.

If X = {n is natural number} then you showed that we can use P(n%2=0|X) + P(n%2=1|X) = 1 and P(n%2=0|X) = P(n%2=1|X) together to get P(n%2=0|X) = 1/2.

The same logic works for the three statements n%3=0,n%3=1,n%3=2 to give us P(n%3=0|X) = P(n%3=1|X) = P(n%3=2|X) = 1/3.

But then the same logic also works for the two indistinguishable statements n%3=0,n%3=1 \/ n%3=2 to give us P(n%3=0|X) = P(n%3=1 \/ n%3=2) = 1/2.

But 1/2 = 1/3 is a contradiction, so we find that axiom 3 leads to inconsistencies.

Comment author: wantstojoinin 17 March 2012 10:07:37PM *  0 points [-]

Isn't it just strategy stealing? Calling it tit-for-tat maybe focuses away from the fundamental reason why it wins.

Comment author: wantstojoinin 11 March 2012 12:19:50PM *  3 points [-]

I'd like to ask him for an explanation of what the hard problem is and why it's an actual problem, in a way that I can understand it (without reference to undefinable things like "qualia" or "subjective experience"). Would probably have to discuss it in person with him and even then doubt either of us would get anywhere though.