On 04 Oct 2013, at 20:00, meekerdb wrote:

On 10/4/2013 7:39 AM, Bruno Marchal wrote:
Physical time, on the contrary is most plausibly a quantum notion, and should normally emerge (assuming comp) from the interference of all computations + the stable first person (plural) points of view.

I don't think physical time is even a single concept. There is "t" that goes in the equations, there is a general relativistic time- like killing vector, there is the direction of increase of local entropy, there is expansion of the universe,... A lot of interesting questions in physics arise from studying how these relate to one another.

I agree. Here by physical time I was thinking of the "t" in the time dependent Schroedinger equation. It might be, already in physics, a dispensable parameter (like in DeWitt-Wheeler equation H = 0). All notions of time must be recovered from 0, 1, 2, 3, ... + addition + multiplication (+ the points of view, but they are derived).



You received this message because you are subscribed to the Google Groups 
"Everything List" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to everything-list+unsubscr...@googlegroups.com.
To post to this group, send email to everything-list@googlegroups.com.
Visit this group at http://groups.google.com/group/everything-list.
For more options, visit https://groups.google.com/groups/opt_out.

Reply via email to