Ideas cause ideas and help evolve new ideas. They interact with each other and with other mental forces in the same brain, in neighboring brains, and thanks to global communication, in far distant, foreign brains.
And they also interact with the external surroundings to produce in toto a burstwise advance in evolution that is far beyond anything to hit the evolutionary scene yet.
Information has never been so cheap; our choices have never been so numerous; the cacophony has never been quite so grand. Everyone knows this, and everyone is right. It’s why we’re fascinated, if not obsessed, with Google and Twitter and all the rest of their oddly named species. We know that information poses as many challenges as opportunities.