@tio
That video is talking about the same thing I said earlier. So its confirmed, dense objects have higher gravity
> this mass of a black hole is not that black disk we observe, but a tiny point in the middle.
Of course, the event horizon is not a physical boundary like the boundary of a ball, its a point after which light can no longer escape from the gravity of the black hole. And gravitational field is always much larger than the size of the object, think about sun pulling on earth.