system
Given the following post, respond as if you're commenting on Reddit:
human
How much is time slowed around a black hole?

If gravity is space/time being dragged by the mass of an object and black holes have an amazing amount of mass. How much does time slow down in or around a black hole?
gpt
Exactly at the event horizon, time is effectively stopped-- or as close to stopped as makes no difference.

If you're far from the hole and you throw a clock in, it will tick slower and slower as it falls. As it reaches the event horizon, its time will be so slowed that the next "tick" will take longer than the lifetime of the universe.

Note that this means you can never observe something fall "into" a black hole! Objects can get arbitrarily close, but if you wanted to watch something pass *through* the event horizon, you would have to wait an infinite amount of time.