For me:
- System: Anarcho-Capitalism.
- Money: Hashgraph based stable coin, with Multisig wallets.
- Written Language: Korean Language- Hangul.
- Number System: Kaktovik Numerals.
- Calculator System: RPN
- Clock System: Swatch Internet Time
- Calendar: Solar Hijri calendar.
The usual shorthand description I see for the Culture is “fully automated luxury gay space communism”.
I shorten it even more, to “pets for supercomputers.”
I’m on board with that.