Loads of commercial aircraft and jet engine parts are manufactured using additive manufacturing, or ”3D printing”

Yes… but more often something like laser-sintered metal printing, which is not going to melt when hot.

Yep, and it works even in the SpaceX Raptor engine.

Isn’t it standard practice to have a separate TCP stream for NOTIFY or am I mistaken

You mean for LISTEN?

Danish Bjarne may have his < right next to lshift. He needs to use shift+. to enter colon.

On US layout colon is a single keypress but < is shift+.

This may explain the discrepancy.

—- from someone who read Bjarne at 16yo. All hail the Bjarne