More Microscope actual play
Had a go with different people more suited to narrative RPG play and it went splendidly. We covered the time between the human colonization of Mars and the development of faster-than-light travel.
Lots of scenes, lots of twists - terrorists accidentally invented an antimatter drive! The scenes had good drama, too, though when two people seemed to box each other in, I sometimes missed a Burning Wheel-style social conflict resolution mechanic - Duels of Wits are fantastic.
But it all worked out very well.