I wouldn't worry too much. The Earth and all upon it will be long gone by the time any noticeable darkness is visible. Our own star will wipe us out, plus the Andromeda Galaxy is fast on its way to us like a freight train.
No worries mate ;)
Just can't get my head wrapped around the fact.
Got a new watch, divers watch it is, had to drown the bastard to get it!
I get that. The universe is truly mind boggling. Shame, on a personal basis, we'll never know what it's all about - well I assume we'll never know, but I stand to be corrected in some future multi-dimensional life :)