system
A chat on 4chan
human
Find me one physicist that can decisively explain the observable difference between a dead star(s) and a black hole. They see some gravitational lensing and some stars orbiting invisible objects in the centre of the galaxy and then suddenly come up with all this ridiculous bullshit. Black hole theory was a meme meant to exclude academics that weren't in the 'in' group, and nothing more.
gpt
>the observable difference
The amount of gravitational lensing.
If there is so much lensing that at some point the path light takes curves onto itself and has no way to escape the region - we call that mass a black hole.
You will refuse to understand this very simple idea.