[delta_p_delta_x]

> where curious people work together on deep problems

'curious people': people who got jaded by academia and were attracted by the six- to seven-figure salaries at Jane Street.

'deep problems': Buy X units of Y instrument at A exchange, and sell Z units of said instrument at B exchange, and do this often enough that said company makes a pile of money for itself and its employees (mostly itself, given it can afford to pay its employees six to seven figures).

[johnisgood]

Jane Street is just one example, OCaml is widely used elsewhere, too. For example, the first compiler for Rust was written in OCaml, too.

I mentioned Jane Street because it uses OCaml for high-frequency trading, and because they are huge contributors to OCaml.