#embed was reviewed by Evolution Working Group (EWG) September 2nd, 2020 and good progress was made to get the paper in shape to get it into C++23. The resulting directive, however,

… Can I just not write this article, and we all pretend I wrote it and we all get it and we’re gonna move forward with great things so I don’t have to spend the mental cash to get this ball rolling? … No?

Alternative title: “Stepanov is Correct, Part 54014673”.

This is a smaller article to make sure I don’t forget a fun extra property I’ve learned about the system we discussed last time, dear reader!

Short answer: because we said so.