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by xnull6guest 4074 days ago
If QC is not possible for some new underlying principles (not lack of engineering capability) then it would mean our understanding of QM is fundamentally wrong. This could be the case (we've been wrong in physics many times) even though QM has been verified to more digits of precision than any other physical theory.

Trying to build computers in this case and diagnosing the errors then are likely to give us the data necessary for the discovery of the new, better theory.

Now, if it is possible in principle but not practical to engineer - that's what we need a golden age of engineering research to find out.