From the outside, it would never cross the horizon, it would look as if the matter would travel towards the horizon infintly long. After trillions of trillions

From the outside, it would never cross the horizon, it would look as if the matter would travel towards the horizon infintly long. After trillions of trillions of years the information that made up the inbound matter from the horizon will be radiated away by hawking radiation. If you are travelling with a probe towards the horizon though, you would be able to calculate your escape velocity, so you could tell if you are inside our outside the horizon. Its kind of awkward if you think about it... its seems like causality has 2 versions after the horizon. [0]: https://en.wikipedia.org/wiki/Black_hole_information_paradox https://en.wikipedia.org/wiki/Black_hole_information_paradox [1]: https://www.youtube.com/watch?v=yMRYZMv0jRE https://www.youtube.com/watch?v=yMRYZMv0jRE