He was quite willing to concede that his most intensely held opinions weren’t based on factual data, so trying to determine what the factual data actually was would only make him depressed. It’s a worldview that—even if expressed as sarcasm—would be extremely unpopular today. But it’s quietly become the most natural way to think about everything, due to one sweeping technological evolution: We now have immediate access to all possible facts. Which is almost the same as having none at all.