MrHen comments on Open Thread: March 2010 - Less Wrong

5 Post author: AdeleneDawner 01 March 2010 09:25AM

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Comment author: vinayak 01 March 2010 08:27:14PM 5 points [-]

I have two basic questions that I am confused about. This is probably a good place to ask them.

  1. What probability should you assign as a Bayesian to the answer of a yes/no question being yes if you have absolutely no clue about what the answer should be? For example, let's say you are suddenly sent to the planet Progsta and a Sillpruk comes and asks you whether the game of Doldun will be won by the team Strigli.

  2. Consider the following very interesting game. You have been given a person who will respond to all your yes/no questions by assigning a probability to 'yes' and a probability to 'no'. What's the smallest sequence of questions you can ask him to decide for sure that a) he is not a rationalist, b) he is not a Bayesian?

Comment author: MrHen 01 March 2010 09:27:16PM 6 points [-]

This is somewhat similar to the question I asked in Reacting to Inadequate Data. It was hit with a -3 rating though... so apparently it wasn't too useful.

The consensus of the comments was that the correct answer is .5.

Also of note is Bead Jar Guesses and its sequel.