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hey eardrum, table cloth is great to understand, and we commonly portray a black hole as a hole in the middle of that table cloth like a drain pipe
but remember we are talking only in two dimensions. a black hole is three dimensional ie no matter which side of this "black hole ball" you are looking at there is no pipe going anywhere. matter goes in and does not come out. it will head towards the centre of the sphere.
So while we think of a worm hole as two pipes joining two 2d table cloths together, this actually has to happen as 2 x 3d pieces of space somehow joined. the brain starts to fall down here!!!
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