On Tuesday, July 14, 2020 at 2:25:39 PM UTC-5, Alan Grayson wrote: > > > > On Tuesday, July 14, 2020 at 9:43:11 AM UTC-6, Lawrence Crowell wrote: >> >> On Tuesday, July 14, 2020 at 5:55:52 AM UTC-5, Alan Grayson wrote: >>> >>> >>> >>> On Tuesday, July 14, 2020 at 4:34:00 AM UTC-6, Lawrence Crowell wrote: >>>> >>>> On Monday, July 13, 2020 at 6:30:46 PM UTC-5, Alan Grayson wrote: >>>>> >>>>> >>>>> >>>>> On Monday, July 13, 2020 at 5:19:30 PM UTC-6, Lawrence Crowell wrote: >>>>>> >>>>>> >>>>>> >>>>> About the EP; I merely stated that it demonstrates that acceleration >>>>> is locally indistinguishable from gravity, and then I stated what >>>>> "locally" >>>>> means. This is what Wiki and other sources say. Yet you say I am >>>>> confused. >>>>> How so? About masses of BH's, I watch documentaries which feature >>>>> astrophysicists offering their opinions, and they *uniformly* claim >>>>> that BH's have mass. How could it be otherwise if they're remnants of >>>>> massive collapsed stars? Not one makes Brent's claim, that they're just >>>>> geometric manifestations. AG >>>>> >>>> >>>> Black hole mass is a pure spacetime physics. There is no material stuff >>>> anyone can get their hands on. With the tortoise coordinate the distant >>>> observer might say the matter-fields that made of a black hole exist, but >>>> if one tried to reach them they always recede away. Black holes do not >>>> have >>>> mass in a standard sense, though they have an ADM mass defined by the >>>> curvature of spacetime. >>>> >>> >>> Generally, what resides inside a BH interacts gravitationally with >>> what's exterior and is the remnant of a Type 1A supernova. It's >>> unreachable, but has some correspondence with normal mass, which is why its >>> mass can be estimated by its exterior effects, say for the one residing at >>> the core of the Milky Way. I don't know how their masses are estimated when >>> they are cores of distant galaxies. AG >>> >> >> The interior does not interact with the exterior. The event horizon >> prevents that. >> > > Then how can a BH interact gravitationally with objects external to the > event horizon, or do you deny that? AG >
The black hole does not interact with material outside, the material outside interacts with the black hole. A black hole is a causality sink; causal propagation is into the black hole. Only stochastic quantum events propagate out. LC > > >> From the perspective of anyone in the exterior the interior of a black >> hole is nothing more than a theoretical abstraction. It only exists as a >> counter factual situation, where instead of remaining outside an observer >> enters the BH/ >> >> LC >> > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9ec13f95-4513-4b83-9935-b61bad18dcebo%40googlegroups.com.
