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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Chart of Cousins
For every family get-together I go to, it seems there are more kids running around. I know that they are related to me somehow, but what do I call them? Maybe this chart will help next time.
Finding the New Age, for Your Age
You’ve probably heard the lines about how “40 is the new 30” or “30 is the new 20.” What is this based on? I tried to solve the problem using life expectancy data. Your age is the new age.