Quantum Immortality and Non-Classical Logic
- URL: http://arxiv.org/abs/2007.09847v4
- Date: Fri, 25 Mar 2022 03:12:59 GMT
- Title: Quantum Immortality and Non-Classical Logic
- Authors: Phillip L. Wilson
- Abstract summary: The Everett Box is a device in which an observer and a lethal quantum apparatus are isolated from the rest of the universe.
We show that although the standard Everett argument rejecting non-MWI interpretations is no longer valid, we can show that Everett's conclusion still holds within a computable universe.
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- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The Everett Box is a device in which an observer and a lethal quantum
apparatus are isolated from the rest of the universe. On a regular basis,
successive trials occur, in each of which an automatic measurement of a quantum
superposition inside the apparatus either causes instant death or does nothing
to the observer. From the observer's perspective, the chances of surviving $m$
trials monotonically decreases with increasing $m$. As a result, if the
observer is still alive for sufficiently large $m$ she must reject any
interpretation of quantum mechanics which is not the many-worlds interpretation
(MWI), since surviving $m$ trials becomes vanishingly unlikely in a single
world, whereas a version of the observer will necessarily survive in the
branching MWI universe. Here we ask whether this conclusion still holds if
rather than a classical understanding of limits built on classical logic we
instead require our physics to satisfy a computability requirement by
investigating the Everett Box in a model of a computational universe running on
a variety of constructive logic, Recursive Constructive Mathematics. We show
that although the standard Everett argument rejecting non-MWI interpretations
is no longer valid, we can show that Everett's conclusion still holds within a
computable universe. Thus we argue that Everett's argument is strengthened and
any counter-argument must be strengthened, since it holds not only in classical
logic (with embedded notions of continuity and infinity) but also in a
computable logic.
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