It is a convention of The Long Now Foundation to get people to think of time in terms of 10k years instead of a lifetime at best. It goes hand in hand with their 10k year clock.
https://en.wikipedia.org/wiki/Clock_of_the_Long_Now
I think they are speaking to, not ignorant of, this.
> 10k year clock
a.k.a. cuckoo clock
I think they are speaking to, not ignorant of, this.