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RE: The Blockchain As A Quantum Computer
No for a quantum computer you need the superposition of bits, and that can only be done in the quantum realm. Anything physical or virtual, is just classical phyics, and is a classic computer.
The quantum computer that you are talking about is a fiction, since indeed computers are real and not virtual. Just like the dead/alive cat in the box, there is no cat in quantum state as there is no computer capable of such state. it is only the state of information itself that is such due to the limitation which indeed are expressed in quantum mechanics .( that Schrödinger's cat example is so stupid to begin with...) A system, any system, can not be "aware" to the true localized state of each part of it thus it is entangled until "observed". This so called observation is described by the correlations of arbitrary choices between two measurement of the same observed event. and it is the same as two choices made by an automated computers network which will have to decide on B1 or B2 as B. The no cloning theorem is like the dabble spending limitation. In life it is our brain that process that information, in bitcoin it is the miners. A cat can be alive and dead at the same time between blocks just like it is in bitcoin but once the information is spread in the network it can only be alive or dead not both alive and dead!!!! (which none have to do with the real state of the cat since it is in a box and we cant verify it . Once verification enters the equation it is not about "naming" any more but the truths of what we already agreed on as "alive". )