That link is a rather fanciful article. "Primordial" black holes insinuates that they have been around since the Big Bang. If we consider them the explanation for dark matter, we immediately run up against a major problem, dark energy.

As we understand black holes, not even energy can escape them. So, if dark energy accounts for 73% of the Universe, how did that happen? It should have been tied up in these primordial black holes as well. And, of course, there's also classic matter. If the Big Bang generated black holes then classic matter should have been affected, too.

The idea does provoke a strong question, however. Since we know that black holes originate because of the gravity associated with the collapse of big stars, the amount of gravity at the Big Bang must have been phenomenal. Every bit of the Universe was supposedly there at one point so why didn't everything just stay together in one humongous black hole?

Because inflation. According to Alan Guth's theory on the subject, inflation caused spacetime to come into existence at the Big Bang, thereby providing something for the rest of the Universe's components to explode into. Apparently, a black hole didn't have time to form after the Big Bang and not until after the war between matter and antimatter.

My personal thought on the subject is that just after the Big Bang happened, matter and antimatter annihiliated each other, creating dark matter and maybe dark energy, too. We know that this annihiliation wasn't 100% because we exist.

For some reason not all matter was annihiliated. Perhaps not all antimatter was converted to dark matter, either. There may well be a part of the extant Universe that is made up of just antimatter. Some scientists are looking for it but with no luck so far.

This post was edited on 3/19/17 at 10:43 pm