3 ms·
> I can't accelerate towards next week, but I can predict when next week will happen, with extreme accuracy. Is this the same for reaching the singularity? If
by pdonis 3y ago
> I can't accelerate towards next week, but I can predict when next week will happen, with extreme accuracy. Is this the same for reaching the singularity?
If you know the mass of the hole, yes, you can predict how much time will elapse on your clock between now and when you hit the singularity.
> Does the person falling (for the sake of this example let's assume they maintain consciousness) experience the passing of time as they fall further "into" the black hole?
Yes.
> If so, how long would one experiencing the falling until they reach the singularity?
A reasonable estimate for free-falling into a black hole is that the time to reach the singularity is the 3/2 power of the radial coordinate you are falling from, in units of the hole's Schwarzschild radius. If you are just crossing the hole's horizon, you are at the hole's Schwarzschild radius, so your time to reach the singularity from there would be that radius divided by the speed of light (to convert to time units instead of distance units). For a hole of 10 solar masses, for example, this time is about 100 microseconds (Schwarzschild radius of about 30 kilometers divided by the speed of light).
- rocqua 3y agoWhat happens to my speed as I reach (hit?) the singularity 0.1s after crossing the event horizon? Do I jolt to a halt, do I continue to accelerate? Do I keep a fixed speed, but never change position?
- pdonis 3y ago> my speed There is no such thing. Speed is not absolute in relativity. You can only meaningfully talk about your speed relative to some particular object or observer, and then, strictly speaking, only when you and that object or observer meet (i.e., your worldlines cross). Similar remarks apply to all of your questions; they simply aren't meaningful.