Yes, that's right. not only are we the smartest civilization right now, but we are the smartest of all time !! future civs just won't get it like we do.
Sarcasm aside, the expansion of the universe will eventually place distant galaxies formed in the early universe so far away, light from them will be undetectable. We will be outside their light cone.
The future civilization will see nothing, giving no clues as to what happened so long ago.
.
The smartest were Adam’s generation.
We’ve fallen far from that level.