On 11-05-2022 08:14, Bruce Kellett wrote:
On Wed, May 11, 2022 at 3:39 PM Brent Meeker <meekerbr...@gmail.com>
wrote:
On 5/10/2022 9:43 PM, smitra wrote:
If there are only a finite number of states the entire universe
can be
in, then that's also true for observers.
So what does the SE for this discrete universe look like? The one
every
cites assumes a continuum. If the universe is finite then there's
smallest non-zero probability, which as Bruce says, raises some
problems.
Not the least of these problems is the fact that a smallest non-zero
probability makes the collapse real; destroys the ongoing
superposition; renders everything absolutely irreversible; and screws
the hell out of unitary evolution.
Counterexample: The internal state of an ideal quantum computer will
always evolve under unitary time evolution.
Saibal
Bruce
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