Is Our Universe Inside a Black Hole?

Our universe might be inside a black hole, just like you're inside a giant bubble.

Imagine you’re playing with building blocks, each block is part of a bigger tower. Now imagine that tower is so tall, it’s like a black hole, the kind of hole you can't see through because everything gets sucked in. If your whole room was that big tower and then collapsed into a black hole, you wouldn’t know you were inside one. You’d just feel like you're in a new world.

If our universe is inside a black hole, it means we’re all part of something even bigger, maybe another universe! Like when you put a toy inside a box and shake it, the toys don’t know they’re being shaken. They just bounce around, not knowing they're in a box.

Scientists use math like your teacher uses rulers to measure things. They found that if our universe is inside a black hole, the way space and time work would match what we see, kind of like how a toy inside a box moves when you shake it, even though it doesn’t know it’s in a box.

So maybe one day, we’ll find out if we’re really just part of something much bigger!