We Live on the Event Horizon of a Four Dimensional Black Hole. Define the Theory
Answers
Explanation:
Scientists believe that the fourth dimension is time, which governs the properties of all known matter at any given point. Along with the three other dimensions, knowing an objects position in time is essential to plotting its position in the universe.
Explanation:
theoretical physics 4D universe is the universe which we live in. 3 spatial dimensions and Time as the 4rth dimension. In this case the answer for your question will be if we live on the event horizon of a black hole then we will be spaghettified spontaneously and crushed into Singularity and yes over time the black hole evaporates due to Hawking Radiation.
Now I am sure you meant a level higher dimensions than our current universe when you asked about 4 D Blackhole. So let me try to answer your question in that perspective as well.
So in a 5D universe we might assume that a Blackhole is no more a sphere but an Hypershpere and the point of Singularity does not apply at least literally but we might have to come up with a new term which Physicists surely had thought about. But I am guessing the theoretical singularity will be a 4 D object much like our universe. So in other worlds our Universe which we live in might be a collapsing 5 Dimensional Blackhole. I am sure we need to find new physics and mathematics to explain Hawkings radiation in higher diemsnions.
hope it helps ≧ω≦