THE POST-SCARCITY ECONOMY:What do the indie video game Minecraft and the cool, "fabricator," or 3D printer, MakerBot have in common? They might be able to deliver up a possible solution to resource scarcity, according to this video from PBS Idea Channel. True, there's quite a ways and a while to go before we can make and re-make things infinitely--but one can hope! One place to get started: your local library--which may soon become a full-fledged Makerspace.