Old Bones in the Brine

Just when I thought I'd pushed you far away
I check my history
It doesn't look good for me
What am I worried about anyway?

We're all gonna die someday
The sun's gonna melt the whole planet away
In five billion years
Give or take

So let's just take a minute
A tiny speck on the sleeve of time
Future explorers won't even know our names
We'll just be some old bones in the brine