Black holes occur in the galaxy at a frequency of approximately one for every 100,000 stars.

“I would say one out of every 100,000 stars in the galaxy objects in Stellar objects in the galaxy is a black hole as the consequence of the death of this process”

Hawking radiation could theoretically be described as quantum mechanical tunneling.

“a paper was published about 20 years a ago that suggested that mathematically Hawking radiation could be described as Quantum tunnel a a thing where violating what we normally think of as the boundaries of Any Given object you can temporarily every once in a while get a little bit of stuff”

Orbits very close to a black hole are unstable and eventually lead to a plunge into the event horizon.

“so you get closer you have to go faster and faster and faster to to stabilize that extra term to stay in orbit but that just makes this this third term even bigger because it's gravity times rotation and that eventually destabilizes the orbit”