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[return to "Ask HN: What scientific phenomenon do you wish someone would explain better?"]
1. arkanc+ps[view] [source] 2020-04-26 22:55:07
>>qqqqqu+(OP)
Quantum Computers. Not like I'm five, but like I'm a software engineer who has a pretty decent understanding of how a classical turing machine works. I can't tell you how many times I've heard someone say "qubits are like bits except they don't have to be just 1 or 0" without providing any coherent explanation of how that's useful. I've also heard that they can try every possible solution to a problem. What I don't understand is how a programmer is supposed to determine the correct solution when their computer is out in some crazy multiverse. I guess what I want is some pseudo code for quantum software.
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2. skoczn+si1[view] [source] 2020-04-27 09:23:01
>>arkanc+ps
I looked briefly at QCs and I understood them as kind of a machine that doesn't try every possible solution. It is in every possible solution, and then you can somehow "lock it" in the state that is the solution to your problem. Kind of like NP problems are hard to find a solution but easy to verify a solution.
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