stackoverflow is where you go for indepth discussions. Math and physics stackoverflow are excellent, as well as cryptography, security, ancient languages. The m

stackoverflow is where you go for indepth discussions. Math and physics stackoverflow are excellent, as well as cryptography, security, ancient languages. The mechanism of twitter doesn't really allow for going in depth and it promotes snarky one liners, which even with snark removed, remain one liners. It's a much more noisy medium, IMO, for intellectual exchange.