This video* is chock full of insights that clarify complicated concepts about the size of the universe.
And it’s a sobering reminder of just how small we are. The video points out that the local group of galaxies—that includes our Milky Way and the neighboring galaxies that are close enough to ever possibly consider exploring in some way—make up .00000000001 percent of the observable universe. The rest of the universe—basically all of it—will forever be beyond our reach.
In the very distant future, though, most galaxies will be so far from us that their light will never reach Earth. If humans are still here, or if intelligent life exists elsewhere, those future generations won’t see any signs of this vast universe that we know we inhabit.
How nice to be alive in a time of peak, supersize existential angst.
Kurzgesagt (which apparently means “in a nutshell” in German) is a brilliant YouTube channel that uses impeccably crafted, beautiful animated videos to explain science “in a nutshell”, as they say.