This post has two parts. First, the news: Microsoft’s Majorana 2 announcement and why the physicists in the field remain with one foot (both, actually) behind.

This post has two parts. First, the news: Microsoft’s Majorana 2 announcement and why the physicists in the field remain with one foot (both, actually) behind. Then, the educational part: a decent explanation of Shor’s algorithm, because a lot of people repeat “quantum computers break RSA” without the slightest idea of the mechanism, and the mechanism is too beautiful to leave out.