Update 2014-05-22

Update 2014-05-22: I've become more supportive of the general value of building and maintaining the sense that strangers in your society are basically good people. Doing the efficient thing here erodes that sense, even if it would be better if we all did it. So in a case where late merging is very rare, one where the mass of early mergers are just going to resent you for late merging instead of joining you, your main effect is eroding that societal tru...