Strange. Very very strange.

This is one of the 🤯🤯🤯 experiments we ran on the Duolingo Retention team : https://t.co/Dv9Wp377vT
Today might have seen the biggest physics discovery of my lifetime. I don't think people fully grasp the implications of an ambient temperature / pressure superconductor. Here's how it could totally change our lives.
Alex Kaplantwitter.com