Mathematician Hannah Fry is back with another video. She explains why it seems like everyone in your network — on Twitter, Facebook, and in real life — is more popular than you and how we can use this idea to predict the spread of diseases. Fry’s understated presentation style totally enhances the interesting subject matter.
Why everyone is more popular than you
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Toilet Paper Calculator
Maybe you’re starting to run low. Here’s how much you’ll need when you go to restock.