He used it in the "Tackling the Awkward Squad" talk from 2001[0], so it's been a long time. [0] https://www.microsoft.com/en-us/research/publication/tackling-a

He used it in the "Tackling the Awkward Squad" talk from 2001[0], so it's been a long time. [0] https://www.microsoft.com/en-us/research/publication/tackling-awkward-squad-monadic-inputoutput-concurrency-exceptions-foreign-language-calls-haskell/ https://www.microsoft.com/en-us/research/publication/tacklin...