Mathematicians occasionally uses "tack" symbols, ⊥ and ⊤, for various purposes. They're called that because they look like thumb-tacks from the side. But if you need a particular tack, what do you call it? Is "⊥" the "up" tack, because the pointy bit is up? Or is "⊤" the "up" tack, because it's the normal, safe orientation for using a thumb-tack?

Today I learned that not only do people disagree about this, the two approaches are delightfully named the "London" and "Bosworth" conventions.

Even better, the symbols in Unicode were initially named according to the Bosworth convention, then renamed to the London convention, BUT NOT ALL OF THEM! So U+234E APL FUNCTIONAL SYMBOL DOWN TACK JOT is actually an up-tack, and vice-versa. Nothing can ever be simple. :)

https://www.math.uwaterloo.ca/~ljdickey/apl-rep/tables/note1.html

The latest Halide update was rejected because, after seven years, a random reviewer decided our permission prompt wasn't descriptive enough.

I don't know how to explain why a camera app needs camera permissions.