I wrote a thing. The thing is a book.
Happy birthday, Gregor!
A remix of the birthday "paradox."
A puzzle I wrote for 12-year-olds turns out deeper than I expected.
Integral calculus = gallant curlicues.
You don't hear a lot of hot takes on straight lines. Or do you?
Fairy tales have never been more succinct.
How a student found bravery and an advisor showed grace.