DOCTOROW: It’s not hard to think about a kind of nanotech future where virtually all objects are available on demand. In that kind of world, both the traditional Marxist and the traditional Keynesian analyses don’t make a lot of sense. These are predicated first and foremost on the regulation of scarce and valuable objects.
PEARCE: In maybe three or four decades or so, we’ll be choosing such traits as the average hedonic set point of our children. Over time, I think allelic combinations [suites of variant copies of mission-critical genes] that leave their bearers predisposed to unpleasant states of consciousness — unpleasant states that were genetically adaptive in our ancestral environment — will be weeded out of the gene pool.