Tim Urban
@waitbutwhy · Apr 24, 2023
I remember being 5 on the beach and having my mind blown when my dad said that if you walked down the beach and just kept walking you'd eventually end up back here from the other direction. This is the 3D version of that.
From Coming of Age in the Milky Way by Timothy Ferris.
Elon Musk
@elonmusk
Mind-blowing concept when you first hear it.
There is arguably a practical maximum to digits of pi, which is the number required to divide the universe into cubes of Planck length.
12:30 AM · April 25, 2023 · 2.7M views
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