"Throughout history, every age has thought of itself as more knowledgeable than the last. Renaissance humanists viewed the Middle Ages as an era of darkness, Enlightenment thinkers tried to sweep superstition away with reason, the modern welfare state sought to slay the "giant" of ignorance, and in today's hyper connected world seemingly limitless information is available on demand. But what about the knowledge lost over the centuries? Are we really...

"One of the simplest and most powerful ways we understand people is as members of a generation. Your uncle is a bit racist because he's a baby boomer; your gen x boss is not a good team player; your cousin is constantly trying to go viral because he's gen z, and his generation is obsessed with fame. We also use generations as a tool for tracking how a society's values change over time (baby boomers liberated sex; millennials made it problematic),...

"Knowledge is a big subject, says Stuart Firestein, but ignorance is a bigger one. And it is ignorance--not knowledge--that is the true engine of science. Most of us have a false impression of science as a surefire, deliberate, step-by-step method for finding things out and getting things done. In fact, says Firestein, more often than not, science is like looking for a black cat in a dark room, and there may not be a cat in the room. The process is...