[ExI] Google’s Willow Quantum Chip: Proof of the Multiverse?

[Jason Resch]

On Sun, Oct 12, 2025, 10:22 AM Adrian Tymes via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> On Sat, Oct 11, 2025 at 4:51 PM Jason Resch via extropy-chat
> <extropy-chat at lists.extropy.org> wrote:
> > If you study Shor's algorithm, you will find there is a step where the
> quantum computer does indeed multiply a random number by all 2^(N/2)
> possible numbers (where N is the number of qubits). All these superposed
> results of the computation are then processed by a Fourier transform.
>
> Rather, a thing that is the superposition is then processed.


Exactly. And the result is a superposition of all the results of that
processing. These are the intermediate results which I claim must exist, if
we live in anything like a lawful world where effects have antecedent
causes.

It is
> not the case that one result is processed and then another and then
> another, as a classical computer would do it.


Agreed. It is done in parallel. My point about how it was done similarly to
a classical computation referred to how the logic gates implement the
computation. That much is the same, and there are intermediate states of
the computation.


  But - if we assume that
> all the things that are very unlikely to be the result are excluded -
> then this superposition just contains the thing that will become the
> result.
>

A superposition of 2^(N/2) distinct states. Do you claim this thing is not
"really real" as some Copenhagen or "shut up and calculate" fans do? If you
deny it's reality, then how can it stand in a a chain of causally related
events?

That's the point of my argument for why quantum computers so strongly point
to a multiverse. It obliterates the one safe fallback non-realists had:
"the superposition is just an abstraction" "the super position is just a
calculating device" "the superposition isn't really real"

But now non-realists have no answer when it comes to explaining how quantum
computers are able to get correct answers out of an "unreal superposition."

Jason
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