What If The Great Filter Isn't Behind Us

There’s something kind of puzzling when you think about life elsewhere in the universe. If intelligent civilizations are possible, and the universe has had billions of years for them to pop up, why don’t we see evidence of them? Maybe intelligent life is just super rare. Maybe it’s really hard to even get simple life started, harder than we think. Or maybe, intelligence itself is tough to evolve. But then again, what if the hardest part actually comes later, after life gets smart? That’s wher...