Viewing a single comment thread. View all comments

astromaddie t1_j7s9c2x wrote

Basically, imagine the paper is the fabric of the universe. Now imagine it’s a box, instead of a flat paper. You fold it the exact same way, but because you need to fold the two-dimensional paper in one dimension higher (3D) than the physical medium of paper, you would need to fold the three-dimensional cube in one dimension higher (4D) than the physical medium of space.

Does that make sense?

2

Anonymous-USA t1_j7szma3 wrote

That’s how a black hole warps space. That takes such immense mass that it would be impossible to travel through that. A wormhole could only be traversed if space-time were more like Swiss cheese with natural holes and tunnels. And we could only (still) traverse the surface of that Swiss cheese, but we’d get to the other side very fast.

1