
I really love Matt Ridley’s The Rational Optimist. Not least of all for his introduction to that book, the seductively titled “When Ideas Have Sex”. Ridley himself does a really good of explaining the introduction in his 2010 TEDtalk. But the broad strokes of the argument goes something like this.
Sex is really great (well, yeah) for a species, since it allows for an individual draw on the genetic anomalies as such as dominant genetic tradition. Those rare few who seemed to have a natural immunity to HIV (for real, hit Google for this one), need not be isolated and eventually rendered extinct. Instead their genetic material can form part of the greater human genome.
Then Ridley poses a shocking question. One of those questions that are obvious, or should be obvious, but you really have no idea why you’ve never asked it before. Ridley’s question is simply, how is it human beings came to be so successful a species? How successful, you may well ask if you failed to notice homo sapiens sapiens’ domination of the biosphere. Well, as successful as this. Human beings are the only species, the only species…to demonstrate an increase in prosperity even as there’s an increase in population size.
So the question for Ridley is this: is sex a useful metaphor for understanding cultural growth and success? And if so, what’s the cultural analog for sex? Ridley reckons it’s exchange. Because exchange always renders specialization. And specialization always signals the production of technological complexity well beyond the scope of individual capacities.




























