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RE: Quantum Computing as Viewed from the Perspective of Platonic Metaphysics (and it's effect on Bitcoin and the Legal System)
Very interesting article.
It is correct that there are superluminal effects in physics, but so far none of them allows to transmit any information. If I set up an entangled pair of particles, I keep one and I send the second to someone in another galaxy. If I measure later, that immediately gives me information on the far away particle.
The problem is that I can in no way influence what I will measure, so I cannot send information to the person in the other galaxy.
I completely see the concerns of bitcoin quantum security. I also understand the idea of quantum law, but this problem seems to be purely philosophical. Am I missing something?
Quantum entanglement used in computing with lasers can produce predictable results but have to be preserved with supercooled chips. The problem at this point seems to be how to read the results of that state.
I am not aware of these developments. I will look into the results and their interpretation.
Anyways, reading the results is certainly the main issue currently, but in my understanding this is not related to superluminal information propagation.
Unfortunately entangled particles themselves have to obey the speed of light rule, yeah we could communicate instantly over vast distances with them but not until they have been distributed, which could take millions of years by any practical means.
Indeed the universe is meaningless without an observer but when a single photon that's been around since the beginning of time (or any other particle) counts as an observer there is no reason to think we are special in that respect and a crime is still a crime whether a judge "observes" it or not. It annoys me when people take the logic of Quantum Mechanics and apply it to the macro world, you cannot do the Schroedinger's cat experiment for real, that was the point of it.
As for quantum computers, don't worry, unlikely we could build anything that does not de-cohere before rendering anything other than trivial results. This is not a limit of our technology, it's the nature of the universe.