Comments by "Lepi Doptera" (@lepidoptera9337) on "Quantum Instruction Set - Computerphile" video.

  1. The problem with that is that you are NOT doing an actual matrix multiplication that way because the math that uses the matrix multiplication describes an infinite repetition of the quantum computer and not one copy of it.
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  2. A measurement does NOT make the "probability" of an outcome 100%. That is absolute nonsense and folks who are speaking on a math channel should know better than this. A measurement simply produces one physical outcome. If we tabulate many such measurements, then we get frequencies and if we then imagine that we can take an infinite number of measurements, then we get probabilities through the law of large numbers. The individual measurement, however, does NOT change such probabilities at all. It has an infinitely small influence on the probabilities by definition.
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  3. No, it's not. It's not even close. Neural networks are perfectly classical systems.
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  4. No, you can't do that. Quantum mechanics does not work like any of the digital systems that you may be familiar with.
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  5. You can build a quantum computer at home for a few thousand bucks, if you want. That's not the problem. The problem here is that you are uneducated. ;-)
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