[Robotbeat]

The flip side of this argument is that if a quantum computer can never show "quantum supremacy" over a classical computer, then perhaps there are much better ways of simulating quantum phenomenon with classical computers than we've yet discovered.

It's important to remember that the motivation for quantum computing came from the realization that it's intractable to simulate quantum phenomenon on classical computers. So any claim that classical computers can do just as good as quantum needs to butt up against this realization at some point (IMHO).

[AlexCoventry]

I think the flipside is, if we can't do it, we discover interesting new physics.

I'm looking forward to it either way.