Explain this, black holers:
At a black hole's event horizon, time dilation becomes infinite. Relativity shows this.
That means from any external perspective, it takes an infinite amount of time for an object to fall into the black hole. So, the object never actually gets eaten (from our perspective.)
Given this, how is it possible that we, in our current perspective, observe black holes to exist? How does a collapsing star ever form an event horizon when it should take an infinite amount of time for this to occur?
And also: given hawking radiation seems to indicate all black holes will eventually dissolve in a finite amount of time, how can a black hole EVER exist? (since the time it takes for a black hole to form should be infinite, which is less than the time it takes for them to dissolve.)
At a black hole's event horizon, time dilation becomes infinite. Relativity shows this.
That means from any external perspective, it takes an infinite amount of time for an object to fall into the black hole. So, the object never actually gets eaten (from our perspective.)
Given this, how is it possible that we, in our current perspective, observe black holes to exist? How does a collapsing star ever form an event horizon when it should take an infinite amount of time for this to occur?
And also: given hawking radiation seems to indicate all black holes will eventually dissolve in a finite amount of time, how can a black hole EVER exist? (since the time it takes for a black hole to form should be infinite, which is less than the time it takes for them to dissolve.)
