Abstract
Quantum mechanics is all about what happens at the very micro level. Taking the example of a face, Femi explains that if you zoomed into the hair on the eyebrow, zoom in further you'd see molecules, further you'd see atoms, further still you'd see a nucleus, electron, etc. and even further you'd see something that cannot be described in terms of a substance. The most fundamental unit of reality cannot feel familiar except a number. On the most fundamental level, things are made of numbers.
