At first this might just seem to be another cute version of "Kids Say The Darndest Things", but I think she's actually working on a new theory of economics that, in its final version, will revolutionize banking, stock markets, and politics.
Colin Shivers with a discussion about the usual 80% solutions versus the benefit of a 100% solution, followed by his 100% solution of regexes represented by S-expressions for scsh (using Henry Spencer's famous Posix regexp engine in its core):
https://www.khoury.northeastern.edu/~shivers/papers/sre.txt
I see no source. Web searching also fails, although I see a re-implementation in Racket, "irRegular expressions":
https://docs.racket-lang.org/irregex/index.html
And this paper coauthored by Colin Shivers: "trx: Regular-tree expressions, now in Scheme" https://www.khoury.northeastern.edu/home/shivers/papers/trx.pdf
Oh, well, I suppose the code would have bit-rotted by now anyway.
"The Golf Ball Paradox": throw a golf ball (or squash ball) into a cylinder and it pops back out (without touching the bottom)
Video by Steve Mould:
https://www.youtube.com/watch?v=5sbM2Isx17A
Mathematical analys:
(1) "Golfer's Dilemma", Marco Gualtieri et al, June 1 2006, American Journal of Physics, https://doi.org/10.1119/1.2180281
(2) "On a simple formulation of the golf ball paradox", O Pujol et al, Feruary 27 2007, European Journal of Physics, https://doi.org/10.1088/0143-0807/28/2/024
nostr:npub1z2qdmfzhs2uwg8kmsh37xavt2hq48gch63e787ggd3s6mt8waxgsxu3yuf I thought this would interest you.