When and Why Should We Believe Experts?

Professor Quasimodo says that we should brush our teeth twice a day and Professor Mosiquado says that brushing teeth has no dental benefits and is a complete waste of time. They’re both dental experts! How do we figure out what to believe in a case like this? Well, here’s one promising model: We should trust what an expert says about X if and only if the expert is relaying the consensus...

You Can’t Just “Do Your Own Research”

“Do Your Own Research.” I’ve seen this phrase more times in the last couple of months than I have, probably, in my entire lifetime. It’s often posted in ALL CAPS and served with a healthy dose of exclamation points—or exclamation “marks” to our UK readers (not that we have any, or any readers, at all, for that matter). Links to pop-science blogs about mask inefficacy, YouTube...