On 1/4/2014 7:53 PM, LizR wrote:
On 5 January 2014 16:16, meekerdb <[email protected] <mailto:[email protected]>>
wrote:
Not really as a Feynman diagram. Those are always drawn in momentum space
(because
energy/momentum is what's conserved) and are assumed to occupy only a
negligible space.
I always assumed they were similar to worldlines for fundamental particles.
and this is sufficient to give us the illusion that there is a "moving
present
moment". In practice (if we leave aside a comp type explanation and assume
our
minds are generated by the activity of our brains) then that brain activity
is
sufficient to give a powerful illusion that we are "moving through time".
But, as
the guy in "Memento" demonstrates, this is an merely illusion, caused by the
persistence of memory, which effectively gives us a physical connection to
the past
via the arrangement of the worldlines of the molecules making up our
physical
structure.
You don't really have to say it's an illusion. It's a description of the
world and
the fact that you put different t-labels on events at the same (x y z)
doesn't undo
the fact that there are different events at those different t-values. Memory
provides an arrow of psychological time - but it doesn't always follow the
arrow of
physics (entropy increase).
I am simplifying in an attempt to explain it to Edgar, who clearly has a problem
grasping how any of this works. With all due respect, I'd appreciate it if my attempts
weren't obfuscated. He obviously doesn't get even the basics of the block universe
picture, so piling on lots of extra details will only confuse matters - or more likely
give him an excuse to just ignore them,
I don't think he needs an excuse. I've given up on him.
Brent
like climate change or evolution deniers - "look, they disagree about some minor
details, so their entire theory simply must be wrong!"
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