> You don't know that. If the quark degeneracy pressure is high it could support far more massive objects.
Nope. Go read Shapiro and Teukolsky's textbook on compact states of matter. They go into excruciating mathematical detail to show that this is not true. It has to do with relativistic degeneracy, which is a general phenomenon that applies to any kind of compact state of matter.
> Why would you assume, without data, that there is no other degeneracy pressure that could support such pressures?
Because physicists have already figured out a general model that applies to all possible states of compact matter. See above.
> Run the numbers - that's about a factor of 1,000 too large to be a black hole.
You're missing the point. For a system of that mass, there is nothing else that could fit even inside a radius 1,000 times the Schwarzschild radius and remain stable for a significant period of time. For example, if there were a million stars (or neutron stars) of one solar mass each, they would not be in stable orbits; the whole system would collapse to a black hole. This has been studied in detail numerically and is part of why astronomers are highly confident that the object at the center of our galaxy is a black hole.
> A cold object would be invisible.
There would have to be on the order of a million cold objects, not just one, because of the maximum mass limit. See above.
> How do you know it's a black hole and not a neutron star?
All of the candidates I linked to are well over the maximum mass limit.
> It would "see" it gravitationally.
I'm not sure what you mean. If you mean, would an object on the other side of the hole detect the increase in mass when the first object fell in, yes, it would.
> Anything heading toward a black hole would (from my POV) look like it was frozen in time.
Not until it got very, very close to the hole. For example, in the case of the hole at the center of the galaxy, whose Schwarzschild radius is about 10 million kilometers, you could see an object fall to within well under a million kilometers of the horizon before the light emitted from it would be too redshifted to detect. (How close would depend on how low a frequency of EM radiation your detectors could detect; we can detect very low frequencies, which means my estimate above might be quite a bit larger than our actual current detection capability.)
> all scientists agree about that part
About the general fact of light from objects falling into a black hole being redshifted, yes. But I strongly doubt you have actually run the numbers to see how close an object has to get to the hole before the redshift becomes significant.
> Since we can never see any black holes form, black holes do not exist.
Faulty logic. Nor do any of the scientific sources you quote from make this claim. They know better.
Nope. Go read Shapiro and Teukolsky's textbook on compact states of matter. They go into excruciating mathematical detail to show that this is not true. It has to do with relativistic degeneracy, which is a general phenomenon that applies to any kind of compact state of matter.
> Why would you assume, without data, that there is no other degeneracy pressure that could support such pressures?
Because physicists have already figured out a general model that applies to all possible states of compact matter. See above.
> Run the numbers - that's about a factor of 1,000 too large to be a black hole.
You're missing the point. For a system of that mass, there is nothing else that could fit even inside a radius 1,000 times the Schwarzschild radius and remain stable for a significant period of time. For example, if there were a million stars (or neutron stars) of one solar mass each, they would not be in stable orbits; the whole system would collapse to a black hole. This has been studied in detail numerically and is part of why astronomers are highly confident that the object at the center of our galaxy is a black hole.
> A cold object would be invisible.
There would have to be on the order of a million cold objects, not just one, because of the maximum mass limit. See above.
> How do you know it's a black hole and not a neutron star?
All of the candidates I linked to are well over the maximum mass limit.
> It would "see" it gravitationally.
I'm not sure what you mean. If you mean, would an object on the other side of the hole detect the increase in mass when the first object fell in, yes, it would.
> Anything heading toward a black hole would (from my POV) look like it was frozen in time.
Not until it got very, very close to the hole. For example, in the case of the hole at the center of the galaxy, whose Schwarzschild radius is about 10 million kilometers, you could see an object fall to within well under a million kilometers of the horizon before the light emitted from it would be too redshifted to detect. (How close would depend on how low a frequency of EM radiation your detectors could detect; we can detect very low frequencies, which means my estimate above might be quite a bit larger than our actual current detection capability.)
> all scientists agree about that part
About the general fact of light from objects falling into a black hole being redshifted, yes. But I strongly doubt you have actually run the numbers to see how close an object has to get to the hole before the redshift becomes significant.
> Since we can never see any black holes form, black holes do not exist.
Faulty logic. Nor do any of the scientific sources you quote from make this claim. They know better.