Less Wrong is a community blog devoted to refining the art of human rationality. Please visit our About page for more information.

Zaq comments on Timeless Identity - Less Wrong

23 Post author: Eliezer_Yudkowsky 03 June 2008 08:16AM

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

Comments (244)

Sort By: Old

You are viewing a single comment's thread. Show more comments above.

Comment author: Zaq 10 October 2013 09:58:04PM 1 point [-]

Okay, we need to be really careful about this.

If you sign up for cryonics at time T1, then the not-signed-up branch has lower amplitude after T1 than it had before T1. But this is very different from saying that the not-signed up branch has lower amplitude after T1 than it would have had after T1 if you had not signed up for cryonics at T1. In fact, the latter statement is necessarily false if physics really is timeless.

I think this latter point is what the other posters are driving at. It is true that if there is a branch at T1 where some yous go down a path where they sign up and others don't, then the amplitude for not-signed-up is lower after T1. But this happens even if this particular you doesn't go down the signed-up branch. What matters is that the branch point occurs, not which one any specific you takes.

In other words, amplitude is always being seeped from the not-signed-up branch, even if some particular you keeps not leaving that branch.