system
Given the following post, respond as if you're commenting on Reddit:
human
How did the Big Bang not form a super massive black hole?

So, when a star's mass exceeds a certain threshold, it collapses into a black hole.

In the beginning, all the mass in the universe was in close proximity.  How could all that mass not trigger a black hole collapse? Surely there was more mass in the local area of the blast than exists in a black hole, and light (a massless particle) is a lot harder to suppress than actual mass.  Therefore, it should have been impossible for any matter to have escaped the Big Bang (?!). 

What am I missing...

EDIT: Front page! Thanks reddit!
gpt
The Big Bang singularity isn't the same as a black hole. A black hole is a point in space time with infinite curvature. The Big Bang singularity was the entirety of space time. And the entirety of space time expanded. 

That being said. We have no working theory of black holes or the Big Bang. We just see that our models asymptotically reach these points. We can't explain what actually happens at these points, though.