Dude, you made some claim, and I asked where you heard about it because it sounded like bullshit.
Asking where you heard something is not unreasonable. You're just being a jackass about, I guess, making some shit up and someone asking about it? It's really really weird.
Anyway, I checked, and no, that's not how black holes work.
Dude, I'm expecting the most basic explanation of what someone meant by something they said. Claiming not to be an expert isn't a good response when someone asks wtf you meant
You said
What starts from a very small condensed state, and expands rapidly while spinning in one direction? Black holes.
I'm asking where you got that from, since it's the opposite of anything ive ever heard about black holes and what almost anyone thinks about black holes.
I'm guessing maybe they meant that the people uploading to YouTube more often than not are hoping to make money from it. Or even if that's not what they meant, it is definitely a big difference between platforms.
What's the "they" that you mean? The event horizon, the transition point where light can't escape?
That doesn't sound like what they were saying. The actual "hole" supposedly remains infinitely small. And the event horizon radius would expand at a pretty slow rate as matter fell into the black hole. Exponentially smaller as it gains mass.
So I'm still trying to understand in what case a black hole ever "expands rapidly".
Hmmm. I was taught to memorize a few things that accelerate some work/scenarios. But very little math I was taught involved memorization. Nearly all logic and calculation. And I'm late GenX.
I'm just wondering how this happened