Similar thoughts have occurred to me.<quoted text> Something hovers on the edge , they say forever.
Not sure about forever, but they say it can never go in.
As an object nears an event horizon, the dilation it's subjected to increases.
At the event horizon, the dilation is infinite.
From a distant observer's point-of-view, the object never makes it to the event horizon. It only continues to get dimmer and farther away. Time, for the object, from the observer's perspective, is ticking by very, very slowly... and slowing further, asymptotically toward infinite dilation.
The object red shifts out of existence... so to speak.
There will always be infinite distance between an object, or an observer, and an event horizon. If someone tries to bounce radar signals off a black hole, they will wait forever for a return signal... regardless if they travel toward or away from the black hole.
Using radar, or any direct method of measure, like a tape measure or length of rope, will yield the same reading for all black holes. IOW... no matter where the observer is in the universe, and no matter where the black holes are... they're each and all... always... separated by an infinite distance (as far as direct measurement goes).
It's closer to an object, like a star, that's farther away than a black hole than it is to the black hole.