This question already has an answer here:
Assume you are immortal, then say if you fell towards a blackhole, to an observer far away you will appear to slow down as you approach event horizon and gradually come to stand still.
However for you, your time flow will appear normal and never stopped.
Now as we know that there cannot be two different times in the fabric of spacetime , its same time flowing slower near heavier objects than away from them.
In other words you'll have some very real time flow difference like your 1 second = years for far away observer.
Now as you fall towards blackhole you should see the rest of the universe speeding up like a fast forwarded video tape (ignore lack of actual vision due to light bending and other things). By this logic when you hit the event horizon the universe's time would be going infinitely faster and hence the blackhole would have evaporated by that time and universe would end before you cross the event horizon.
So how can you ever fall inside one?