I predict it won't work. Specifically, that the low levels of thermal and other noise required to get a useful number of coherent qubits will be unachievable, a

I predict it won't work. Specifically, that the low levels of thermal and other noise required to get a useful number of coherent qubits will be unachievable, and a million dollars worth of quantum computer won't ever beat a million dollars of regular computers. I'd be delighted to be proven wrong, of course.