On 12/26/2013 1:46 AM, LizR wrote:
Interesting, at a brief skim they appear to be suggesting that phenomena like quantum erasure involve rewriting the past, or words to that effect.....or have I got that wrong?

Yeah, it's sort of like Wheeler's "No event is a real event until it's an observed event." They're saying the observation *writes*, not rewrites, the past. But we don't want to leave conscious observation as a mystery; we know that "observation" by any macroscopic recorder is sufficient to fix the events. I think this can be accommodated in Bruno's theory by looking at it, not as changing or rewriting the past, but as post-selecting the past from the infinite threads of computation.


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