Charles Stross uploaded a new talk today, about the next thirty hears at Olin College.  Here's my favorite bit, about whether post-scarcity breaks economic models:

It doesn't necessarily break Keynesianism, Keynes himself actually speculated about when we would achieve an effective post-scarcity society.  Back in the nineteen twenties and thirties, he speculated that by the sixties, we should be able to reduce the working hours a week to about ten to fifteen hours per person -- and he was absolutely right -- the problem is we reduced it to ten to fifteen hours a week on averagewith some bastards having to work sixty hours a week, and a lot of people being unemployed.

And here's the video link and embed: