Spaghettify

If, for example, a black hole eats enough to triple its mass, then it will have grown three times as wide. For this reason, black holes in the universe can be almost any size, but not all of them will spaghettify you before you cross the event horizon.

First, the intense gravitational forces around a black hole may 'spaghettify' space travellers before they even reach the event horizon, and second, the theory may be fully confirmed only if someone were prepared to test it.