Quote: Originally Posted by Curious Cdn
Black Hole deniers are like Climate Change deniers.
If you look hard enough, you'll find some kook who agrees with your prejudices.
. . . a kook's prejudices
''In principle, a black hole can have any mass equal to or above
about 2.2◊10−8 kg or 22 micrograms (the Planck mass)''
. . . so, it is no problem to know the local event horizon
of micro_black_hole and because '''' Black hole swallowing
and ripping apart star . . . ''
. . . it can have possibility to grow and become Supermassive
black hole . . . '' The minimal supermassive black hole is
approximately a hundred thousand solar masses'' . . . and
'' So-called ultramassive black holes (UMBHs), which are
at least ten times the size of most supermassive black holes,
at 10 billion solar masses or more, appear to have a
theoretical upper limit of around 50 billion solar masses ''
Of course this process (since the Big Bang) took long time:
''The current measurement of the age of the universe is
13.787Ī0.020 billion (109) years within the Lambda-CDM