OK, I hope the tone of my original post wasn't unpleasant (on re-reading, not sure I'm a huge fan of it). It might be interesting to have a version control syst

OK, I hope the tone of my original post wasn't unpleasant (on re-reading, not sure I'm a huge fan of it). It might be interesting to have a version control system which does continuous recording. If git is the last word in VCS then I guess humans didn't live for much longer! But personally I am completely happy with the current style in which the user explicitly creates snapshots and these form a distributed graph, and the user is given tools to work with the graph.