The last balance patch of StarCraft was in 2001. That means you can watch a game that was played 23 years ago and everything will make sense as if it was played today.

If you watch a movie from 2001 and there are prices of things mentioned anywhere you'll have no idea of whether these prices are high or low since inflation has changed the value of money so much in the meantime.

If you open a Nostr note published in 2001 with a client of today you'll still be able to read it without any issues. And if you use a Nostr client written in 2001 you'll still be able to browse the notes people are publishing today.