[Mtinie]

I’ve never seen it framed that way, but they may be referencing the estimated timeframe for the “heat death” of the universe:

https://en.m.wikipedia.org/wiki/Heat_death_of_the_universe

[anm89]

Yeah that was my assumption but I've never seen that specific time frame proposed and it just seems like the kind of thing I would have heard of if it was a know fact.