Rolf_Nelson2 comments on The Second Law of Thermodynamics, and Engines of Cognition - Less Wrong

58 Post author: Eliezer_Yudkowsky 27 February 2008 12:48AM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (65)

Sort By: Old

You are viewing a single comment's thread.

Comment author: Rolf_Nelson2 27 February 2008 01:53:22AM 3 points [-]

Another solid essay.

To form accurate beliefs about something, you really do have to observe it.

How do we model the fact that I know the Universe was in a specific low-entropy state (spacetime was flat) shortly after the Big Bang? It's a small region in the phase space, but I don't have enough bits of observations to directly pick that region out of all the points in phase space.