It&#x27;s fun to read confirmation of the comparability of these platforms.<p>On a related topic, I&#x27;d love to hear more from Parallel Universe, pron, or others at large here in the HN crowd about supervision models.  I&#x27;ve been seeing the wisdom of a supervision tree for error handling more and more in golang code I&#x27;ve written lately.<p>Supervisors can be composed given channels as a primitive, but it still seems to be another thing entirely to <i>do</i> that, full of subtlety and careful engineering before you&#x27;ll be able to reap the rewards of good sane-by-default concurrent error handling.  Erlang seems to have a fantastic reputation here, and I understand Quasar has built a lot on the same theories; what are the essential elements behind that, if we want to mirror it in other languages?