https://en.wikipedia.org/wiki/Coupling_from_the_past https://en.wikipedia.org/wiki/Coupling_from_the_past I "know" this guy from his other insanely clarifying

https://en.wikipedia.org/wiki/Coupling_from_the_past https://en.wikipedia.org/wiki/Coupling_from_the_past I "know" this guy from his other insanely clarifying (though dead tree based) expositions Understandable-- & I think personal-ish submits are the best way to HN -- but I wish he'd keep commenting