It all comes from a quote from Frank Zappa:
Some scientists claim that hydrogen, because it is so plentiful, is the basic building block of the universe. I dispute that. I say that there is more stupidity than hydrogen, and that is the basic building block of the universe.
Since scientists now know that the main component of matter in the universe is dark matter, it stands to reason that dark matter is stupidity. Now you might wonder what in hell does it have to do with intelligence in the universe? Well it simple really, since we know that stupidity, i.e dark matter, interact with all form of matter only with gravity that means that if Earth was the only source of dark matter everything would orbit around Earth. It would be the most massive thing in the universe aside from black hole just from the concentration of dark matter around it. Since we observe that there is a lot of dark matter in the universe and that as far as we know stupidity can only be produced by sentient species (i.e intelligent being, talk about irony) we have not choice but to conclude that the universe is full of intelligent life producing ungodly amoungt of stupidity.
Here you have it folk, you’ve seen it here first, the conclusive irrifutable proof of the existance of millions of intelligent species in the universe just as stupid as we are.