Mysterious export controls on quantum computers

Could be related to the Russian announcement, a few weeks ago, that they have built a 30 qubit computer (which may or may not be reasonably true – in the field, everybody has a different definition of "qubit", "computer" and even "have").

There's no mystery here. One country came up with some arbitrary criteria, and the other countries copied them.

Whats mysterious? When I led a team working on some government funded encryption stuff a few years ago, everyone in gov was terrified of post-quantum cryptography. 10x a day I had to answer questions about PQKD.<p>Maybe some very well funded quantum projects have made certain implementations broken- but it never really mattered, because why have PQKD when you have XKCD. lol<p>Id still employ social engineering, deepfakes, and violence over the cost of building a machine.<p>By the way, we all know the Cloudflare lava lamps? I built a laser diode&#x2F;beam splitter random number generator at home, fun toy.

Discussions<p>(15 points, 2 days ago, 6 comments) <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40865218">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40865218</a><p>(20 points, 17 hours ago, 8 comments) <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40879417">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40879417</a>

Hmmm.... I wonder if someone has finally cracked RSA or its friends.<p>I also remember a conspiracy theory that Bitcoin was actually made as a litmus test to know if\when someone somewhere achieves quantum supremacy (because then they would be able to crack the block....or something like that