Alex Choi

[NBER @nberpubs]

Analysis of the transaction volume and network structure of the main participants on the blockchain, the concentration and regional composition of the miners, and Bitcoin ownership concentration, from Igor Makarov and Antoinette Schoar https://t.co/j7z3ibKcrH

[Jeff Dean @JeffDean]

What an awesome animation..

[Vala Afshar @ValaAfshar]

This incredible animation shows how deep humans have dug @elonmusk