Companies like IBM and (iirc) Google use quantum computers in labs purely as a marketing tool. Each year they proclaim a new success. “Now 4 qubits working!”.
So the average watcher will extrapolate and think: “In 10 or 20 years” the fully working QC will become available.
NOT considering the limits set by the laws of nature.
Time travel will be available sooner than quantum computers. (I mean: both never).
The author of that 7 year old essay basically claimed that error correction is infeasible. But there has been significant progress in this area since then.
Experimental error correction beyond the fault tolerance threshold: https://www.nature.com/articles/s41586-024-08449-y
Here's one with 2^3000 parameters:
doesn't change the fact it's just propaganda, and propaganda against elliptic curve cryptography. which they are doubling down on now since it's effectively securing bitcoin.
