Ars Technica: Quantum computing’s also-rans and their fatal flaws

Ars Technica: Quantum computing’s also-rans and their fatal flaws. “Last month, Google claimed to have achieved quantum supremacy—the overblown name given to the step of proving quantum computers can deliver something that a classical computer can’t. That claim is still a bit controversial, so it may yet turn out that we need a better demonstration.”