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Why didn’t the Big Bang become a black hole?

Here in our Universe, despite how vast it is and how intricately we can probe it, there are still limits to what we can observe, test, and measure. We can obtain signals from very far away and infer the existence of an early, hot, dense, uniform, and rapidly expanding state: the hot Big Bang. However, even the earliest signals that we can detect don’t take us all the way back to the start of the Big Bang itself: just as close to it as we can get. It’s up to use to infer the rest. Similarly, we can only detect signals from outside of a black hole’s event horizon, both before and after the formation of a black hole. And yet, from the properties that we do observe, we can conclude that black holes exist, including their locations and masses, despite not being able to probe the interior of the black hole itself.