Are we all living in an enormous black hole?
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What intriguing question does the episode explore about our universe?
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Hello, it's Meredith. There are some wicked, exciting, unexplainable projects in the works. We are really looking forward to sharing them with you all. And so soon, we're almost there. But in the meantime, we are revisiting some of our favorite unexplainable episodes of all time. And today, I want to share an episode from Noam from 2024 that made me think about the universe in a totally new way. When scientists look out into the stars, there's an edge, a horizon that they just can't see beyond. What if that edge is the boundary of an enormous black hole? What if our universe is inside of an enormous black hole? Here's Noah.
A couple months ago, I was watching a video and I heard this question that I didn't even know was possible. Do we live inside an enormous black hole? I was like, yeah, no, it's not possible. Like, that's a strange question. So I looked up the bio of this guy, James Beecham, and he's a particle physicist at the Large Hadron Collider at CERN. So yeah, okay. I kept watching.
It turns out that the mathematics of the interior of a black hole is almost identical to the mathematics of the exterior of the black hole.
At this point, I was legitimately curious.
So I called him up. I find myself drawn toward all of these kinds of just the edge of our human knowledge. And I want to step just beyond it to see what's there. It's not a crazy step. It's just a very small step.
What I love about talking to James is just how sincerely he takes this question and how excited he is about the even bigger questions it opens up. Like, if we do live inside an enormous black hole.
Does that mean that our universe was birthed from a black hole in another universe? And does that mean that the black holes in our universe are little seeds of baby universes in another multiverse situation?
So, I'm Noam Hassenfeld, and this week on Unexplainable, is our entire universe inside a black hole?
Okay, so before we dive into the black hole, let me just give you a little heads up. James, this particle physicist at CERN, he's really good at posing fascinating questions. He's also pretty good at not really answering them, which means there's going to be a lot more speculation than explanation coming up, even more questions than normal for our show. Let's just say it's going to get weird, but it's going to be a lot of fun. So to start, here's a little Gravity 101. What we observe as gravity, so a ball falling toward the ground or the moon orbiting around the Earth, It's not that the Earth is tugging on those things. It's that the mass of Earth is warping the fabric of the universe. It's essentially creating a kind of crater in space.
Gravity arises because the presence of stuff within a certain volume of space creates a kind of sinkhole in space itself.
This is where we get to black holes, because if you get enough mass in a small enough area, space starts to warp dramatically. The sinkhole gets so steep that nothing can escape it, even light.
You can think about a black hole in space like an extremely strong water drain. If you're a fish in the water, you stay far enough away from the drain, you wouldn't even notice that it's there.
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