AGreatWind

From my limited understanding a black hole forms from the supernova of a very massive star, how are the supermassive black holes that are putatively at the core of all galaxies formed (theoretically)? From a 'galactic collapse'? Or are they a different object from normal black holes (beyond being huge).

Are the rats big enough to trigger any mines themselves? What are the loss rates among the rats?

Awesome, thank you for the answer! I hadn't thought of the time constraints involved. I suppose in the early universe there was not much around beyond lots of hydrogen, but to go from huge clouds of hydrogen to whatever supermassive structure lies at the core of galaxies and quasars would take quite a bit of time, development, and "evolution" -if that word applies to cosmology. Yet such structure are present in the relative present (Andromeda, Milky Way etc.) and also at the extreme limits of the visible universe (quasars, distant galaxies).

Is my characterization of quasars completely off? I am hardly current with cosmological research!

Oh wow! That's amazing! Thank you so much for the mental field trip I am about to take!

Would there be a limiting factor in Dark Star formation that prevents their formation beyond the most ancient past? Or is it possible that dark stars are still forming -there is plenty of dark matter still around!