Bitcoin is a P2P electronic cash system

Whitepaper https://bitcoin.org/bitcoin.pdf
Wikipedia entry https://en.wikipedia.org/wiki/Bitcoin

#deflation
Bitcoin is a deflationary currency

TODO

#energy
Energy consumption

Cambridge Bitcoin Electricity Consumption Index https://www.cbeci.org/
(broken-ish without custom fonts)

Bitcoin used to consume more energy than Switzerland, but as of
2020-08-04 it's a bit lower, between Kuwait and Switzerland.