On Thu, Mar 31, 2011 at 10:20:58PM -0500, meekerdb wrote: > > Couldn't the person have been born at different times too? QM > Hamiltonians are time symmetric. If you try to infer the past you > also have unitary evolution - just in the other direction. So I'm > wondering where the arrow of time comes from in this view? > > Brent
The arrow of time comes from tieing the 1st person view (observer moment) to the 3rd person unitary evolution via the anthropic principle. Not all 3rd person states support the 1st person view. I don't see what difference time translation symmetry of the birth moment makes. -- ---------------------------------------------------------------------------- Prof Russell Standish Phone 0425 253119 (mobile) Mathematics UNSW SYDNEY 2052 [email protected] Australia http://www.hpcoders.com.au ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.
