On 12/12/2017 12:35 pm, Brent Meeker wrote:
On 12/11/2017 4:44 PM, smitra wrote:
On 11-12-2017 23:15, Bruce Kellett wrote:
...
Rubbish. The central point of contention on this thread is whether a
coin toss can be regarded as a classical event, with probabilities
given by ignorance of the initial conditions, or as a quantum event
with probabilities given by purely quantum uncertainties.
This is a straightforward question of physics, and has nothing to do
with metaphysics. As usual, you introduce the term 'metaphysics'
merely to obfuscate, because you have no intelligent response to the
clear physics of the situation.
That the probabilities are given by classical physics does not imply
that there is no branching due to the coin toss.
The trouble with that view is it implies that there is branching due
to everything, since even the most "classical" event has a small
probability of occurring otherwise.
I think that that is what Saibal believes. And the classical probability
for something else happening doesn't even have to be small -- it is
50/50 for the coin toss, after all. Just because something else might
happen, it does not follow that there is branching as in unitary evolution.
Bruce
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