Interstellar and spaghettification in the black hole

I don't understand why the ship didn't suffer spaghettification when entering the black hole. What was the explanation for this?

Answer

The hole in the movie was of such a geometry that objects approaching the event horizon were not subject to spaghettification. Spaghettification happens when there are enormous GRADIENTS in force, per se, not merely enormous forces...what I mean by this is if my whole being is instantly subjected to an enormous pull from the singularity, there's no problem, because I'll just instantly be moved.

The spaghettification problem occurs when there's an enormous pull on my feet, but a less enormous pull on my head. How these forces occur depends on the geometry of the mass. A sphere should spaghettify, if my understanding is correct...what exactly a non-spaghettifying geometry for a black hole would be is prolly a question for the Physics board, and is certainly beyond my grasp of the physics.

There was a line in the movie saying something along the lines that the tidal forces were mild and could be survived.

UPDATE: and here, in fact, is a question about non-spaghettifying black hole geometry, and it is, indeed, beyond my grasp :).

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