I understand the fundamental functioning of a wormhole, just take a sheet of paper representing space time, and then fold it to make a hole with a pencil, so there you go, you have a faster passage to the other side of the sheet. However, what I don’t understand is how exactly space-time folds to allow for this passage. I always thought that space was something flat that has leveling according to the mass of stars and planets, so how exactly is it folded up allowing it to pass through a wormhole?
In: Physics
From my understanding, Spacetime is a 4D geometry. Pretend a 2D plane is the 3D World we live in, fold it in 4D (represented by the 2D plane in 3D) and you have your shorter distance.
To take it down a dimension with 1D bring a straight line like a string, each end is far away from the other end but in 1D you can’t shorten the distance. Now imagine bending the string on a flat surface, bringing the two ends next to each other. Now their distance is much closer.
I hope that makes sense!
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