So, doctors, even when you're super confident about your diagnosis – even when you are correct about your confident diagnosis – you should still make sure the patient gets the tests needed to establish a baseline, if at all possible.
People worry about losing species diversity in the rain forest. But what about intellectual diversity - our most necessary resource? That's disappearing faster than trees. But we haven't figured that out, so now we're planning to put five billion people together in cyberspace.