You are making the mistake of thinking that "singularity" is physical. It is not. In the context of physics "singularity" generally mean "the place where the math mode gives non-physical results and thus does not actually tells us what is going on".nospoon2016 said:Since the center of a black hole is defined as a singularity and space-time collapses at that point (assumption) is it possible to define this point in 3D coordinates? In other words, is it possible that our universe can not be described as a 3D space but rather as a space with 2.99... dimensions?
Well, no. It just means you have to draw a little circle around that point, say, "Here be dragons!" and then never try to infer anything about the universe by using what goes on inside that point. We would need a more accurate theory of gravity to say what does happen inside that region.nospoon2016 said:I wondered about this because the following is stated on https://en.wikipedia.org/wiki/Gravitational_singularity : "The laws of normal spacetime could not exist within a singularity" and therefore this suggest there is no coordinate system defined at that point/region, or if you like no 'normal' coordinate system. If so such region simply cannot be defined in our known 3 dimensions then our universe is not fully definable in 3D.
no, it does not suggest anything, really, because that would be making the same mistake you are making of taking "singularity" to be physical. As Chalnoth has also now pointed out to you, you cannot legitimately do that.nospoon2016 said:I wondered about this because the following is stated on https://en.wikipedia.org/wiki/Gravitational_singularity : "The laws of normal spacetime could not exist within a singularity" and therefore this suggest ...
A black hole singularity is a point of infinite density at the center of a black hole, where the laws of physics break down and our current understanding of the universe no longer applies.
In 3D space, a black hole singularity is defined as a point with zero volume and infinite density. It is often described as a one-dimensional object with no width, height, or depth.
No, a black hole singularity is not considered a physical object. It is a mathematical concept that represents the center of a black hole where the laws of physics break down.
No, we cannot directly observe a black hole singularity. The extreme gravitational pull of a black hole prevents anything, including light, from escaping, making it impossible for us to see or detect the singularity.
Matter that enters a black hole singularity is crushed to an infinitely small size and becomes part of the singularity. It is believed that the laws of physics, including the concept of time, cease to exist within the singularity.