Relatedly, I like the Human Era notation for expanding the idea of years, where 1 AD is equal to 10,001 HE to denote approximately ten millennia since the start

Relatedly, I like the Human Era notation for expanding the idea of years, where 1 AD is equal to 10,001 HE to denote approximately ten millennia since the start of human cities and agriculture, i.e. civilization. We're living in 12021 HE now. https://simple.wikipedia.org/wiki/Holocene_calendar https://simple.wikipedia.org/wiki/Holocene_calendar