Math is obviously good for many things: we use it for everything from building bridges to designing lasers to predicting the motions of planets to explaining why snowflakes have that odd six-pointed shape. But why is it good for so many things?

If you’ve been following the news, you’re aware that the Delta variant of the Coronavirus is all around us. While it only poses a very minor risk to the vaccinated, it is wreaking havoc on the unvaccinated. 

In a world of fake news and disinformation, how can anyone make informed political decisions? Is it possible for us all to come together as a nation if we can’t even agree on what’s true? This week, we’re thinking about Disinformation and the Future of Democracy.

Another month of pandemic... and another philosophical puzzle from me to distract you from it. This time, the puzzle concerns beliefs and specifically whether acting under the guidance of false beliefs can exculpate someone of a moral wrongdoing.

If you repeat something often enough, people are more likely to believe it. That's a phenomenon called the illusory truth effect. It can happen with smart people, and even when the statement is already known to be false. So why does repeating something make people more likely to believe it?