What? It's very obvious. Most of the universe is extremely dense, hyper efficient, computational matter. The stuff we can see was left for new species to develop and advance so as to provide novel minds to the one that got there first.

We're in a nature preserve. It is by far the most likely outcome. We can't see it for the same reason an ant burrowing out of the surface of the mall parking lot can't see the Khols, and even if it could it would just think it's part of the forest.

It has been billions of years. Thinking we're the first intelligent species is some Abrahamic masturbation.