 Quote by AncientCoder
Just to confuse the issue about the event horizon because I can't find a definitive answer about black holes.
Are black holes an actual singularity, or are black holes some kind of thickening "soup"?
My current visualization is a singularity that forms when the blackout is first created surrounded by something like a Dyson sphere(???) where time & in falling matter basically freezes at the event horizon.
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Black holes are defined as a region of spacetime.
This region contains a singularity according to GR, which is often interpreted as the symptom that the description is not completely correct. There's no "soup" in the way GR describes them: infalling matter is obliged to hit the singularity. But who knows what a quantum description of a black hole will look like. Let's wait for the experts' answers about this.
What has the Dyson sphere to do with it?
Time doesn't "freeze". Proper time always flows at its own rate, so to say. The "freezing" you mention depends on your choice of coordinates, it only happens in certain (pathological) coordinate frames. Have a look at Painlevé coordinates, which avoid this problem, and then at Kruskal-Szekeres diagrams and Penrose diagrams which are a different way to map spacetime and show clearly why there's no room for a standing "thick soup".
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