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Double-slit (lemmy.ml)
submitted 1 year ago by coja@lemmy.ml to c/science_memes@mander.xyz
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[-] Slowy@lemmy.world 10 points 1 year ago

What if a computer reviews the data and prints a readout? Is the program a consciousness for this purpose?

[-] kromem@lemmy.world 16 points 1 year ago

Again, the theory would be that collapse (including the state of what is on the paper) occurs upon review of the paper.

Consciousness collapse theories are particularly interesting in the context of the quantum eraser variations of the double slit experiment.

Personally my favorite interpretations ever since reading the Asking photons where they've been paper have been ones incorporating forward and backwards wave functions like the two-state vector formalism or the transactional interpretation.

It's thought provoking to look at experimental results under different interpretation contexts, and is one of the things that frustrating in people thinking there's merit to trying to "pick a team."

Not everything needs to be a team sport, and a variety of interpretations tends to be a good thing as each prompts different types of experiments by their various supporters.

[-] kakes@sh.itjust.works 8 points 1 year ago

I don't think so, from how kromem words it:

(i.e. collapse occurs at the point you are reviewing the data).

The person reading the data is the consciousness, and the collapse is deferred in this case.

What I find interesting about this idea is: What if the computer were to take actions based on the data? Would the collapse occur at the point where agonist notices the effects of those actions? Does it occur when they logically link the action to the event?

I could imagine this as a sliding scale, where in one end is something obvious (reading the data, or an indicator light) and on the other end not obvious at all (a circuit heating up slightly different due to the data being stored). Both of these things have effects in physical reality (presumably), so I wonder at what point in that scale are we would call it a "consciousness collapse"?

[-] kromem@lemmy.world 7 points 1 year ago

While it doesn't address the topic of consciousness, you might find some of how this sort of "backwards in time change" is being applied today interesting:

https://phys.org/news/2023-10-simulations-scientific.html

Additionally, the philosophy of quantum measurement is kind of up in the air after a 2020 experiment:

https://www.science.org/content/article/quantum-paradox-points-shaky-foundations-reality

Which led to what's currently my favorite titled paper, Stable facts, relative facts: https://arxiv.org/abs/2006.15543

So one of the challenges that would arise from layers of delayed/hidden observations would be whether you'd even have universal agreement at the final review. i.e. The computer might have observed the cat as alive and baked a cake celebrating it, but then you open the box to a dead cat, each having correctly observed a result, just separated enough that they didn't need to agree.

[-] kakes@sh.itjust.works 2 points 1 year ago

Interesting, and thanks for the links! Always down to add another perspective to my repertoire.

this post was submitted on 18 Oct 2023
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