Timeline for Time in our Universe versus time in Black Holes
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 10, 2022 at 22:56 | comment | added | ProfRob | An infalling observer will not observe massive amounts of time dilation on an external clock. They will receive a finite amount of signals in the finite proper time it takes them to reach the singularity. Extreme time dilation occurs for radially stationary observers, that cannot exist (in GR) inside the horizon. | |
| May 21, 2019 at 2:57 | comment | added | DoctorBill | I find it SO INTERESTING that people discuss singularities and Spagetification and what someone would experience entering a BH, but - when I postulate that BHs are condensed Matter SHELLS, why then, suddenly "We cannot know what happens inside a BH !" | |
| May 20, 2019 at 6:18 | comment | added | safesphere | "So 1 sec in the black hole might easily be 13.8 billion years outside the hole." - This is incorrect for a Schwarzschild black hole. Time inside a true black hole moves in a different direction and cannot be put in any relation (like "slower" or "faster") to time outside. However, if you consider an empty shell under a gravitational collapse, then, for any external observer, it would look like a black hole that is empty inside where time moves still in the same direction, but so slow that it is practically halted. | |
| May 19, 2019 at 2:31 | comment | added | Árpád Szendrei | @DoctorBill you are correct, though, I do not know what the requirements for the creation of a black hole are, among those might be a requirement of a singularity, but in reality nobody knows. | |
| May 19, 2019 at 1:58 | comment | added | DoctorBill | So, Arpad Szendrei, you agree with me. My hypothesis is that BH's must, therefore, consist of SHELLS of condensed matter of some unknown thickness just beneath the event horizon due to extremely slow in-fall velocity and that singularities may not even exist (YET) in our 13.8 Billion year old universe - which was my whole point in this posting. It seems to me that almost all discussions of BH's by pass the time dilation problem, as if it does not exist, and continue on to discuss singularities as if that is the obvious conclusion! | |
| May 18, 2019 at 18:16 | history | answered | Árpád Szendrei | CC BY-SA 4.0 |