= 27d567bc2d48d9f40e9ccc20ea370b15)
GuySrinivasan comments on Open Thread: February 2010 - Less Wrong
You are viewing a comment permalink. View the original post to see all comments and the full post content.
= 783df68a0f980790206b9ea87794c5b6)
Loading…= b715d02e85f7b3b4ae65ca3d3e450868)
Subscribe to RSS Feed
Powered by Reddit
= f037147d6e6c911a85753b9abdedda8d)
You are viewing a comment permalink. View the original post to see all comments and the full post content.
Comments (738)
Is there a quick and easy way to understand "how to send logical information backwards in time" that doesn't involve watching a 30 min video?
Suppose that the universe is the deterministically evolving wavefunction, and that it makes sense to talk about causing a rock to be moved from here to there. Then you can cause a timeful universe-slice 100 years ago to be the sort of thing which will deterministically evolve until after 100 years the measure of a rock being moved from here to there is greater than it would have been had you not caused the rock to move.
If I'm not mistaken, in the Pearlian view of causality, if the universe is viewed as deterministic then it does not make sense to talk about causing a rock to be moved from here to there; an intervention or surgery has to happen from outside the system being modeled.