Are Black Holes Actually Dark Energy Stars?
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Re: Are Black Holes Actually Dark Energy Stars?
#2I've seen a couple of articles about this guy recently and they both struck me as weirdly credulous given the apparently complete lack of evidence supporting his theory and the fact that approximately no other scientists seem to find it credible.
Re: Are Black Holes Actually Dark Energy Stars?
#3Found an interesting technical summary/critique of these ideas https://motls.blogspot.com/2005/03/chapline-black-holes-dont...
Re: Are Black Holes Actually Dark Energy Stars?
#4How likely is this to be the case over Black Holes?
Re: Are Black Holes Actually Dark Energy Stars?
#5I managed to confuse myself into a Zeno’s paradox situation with how black holes grow.
This is really exotic space. Time dialation immediately outside of the event horizon would make any matter fall so slow that it would take millions of years of time for an observer to see that material cross the horizon.
Re: Are Black Holes Actually Dark Energy Stars?
#6I managed to confuse myself into a Zeno’s paradox situation with how black holes grow. This is really exotic space. Time dialation immediately outside of the event horizon would make any matter fall so slow that it would take millions of years of time for an observer to see that material cross the horizon.
Outside observers never see the material cross the horizon, ever. That's why it's called a horizon, you'll never reach it (from the pov of an outside observer).
Growth-wise, you have to keep in mind that the black hole doesn't grow when matter crosses the horizon, but when the matter gets close enough to the horizon that mass of black hole + mass of new matter creates a blackhole of a larger radius that encompasses that matter.
Re: Are Black Holes Actually Dark Energy Stars?
#7I managed to confuse myself into a Zeno’s paradox situation with how black holes grow. This is really exotic space. Time dialation immediately outside of the event horizon would make any matter fall so slow that it would take millions of years of time for an observer to see that material cross the horizon.
The youtube channel PBS Spacetime has some really great videos about how black holes work, I would start with this one: https://www.youtube.com/watch?v=vNaEBbFbvcY
Re: Are Black Holes Actually Dark Energy Stars?
#8I managed to confuse myself into a Zeno’s paradox situation with how black holes grow. This is really exotic space. Time dialation immediately outside of the event horizon would make any matter fall so slow that it would take millions of years of time for an observer to see that material cross the horizon.
Outside observers never see the material cross the horizon, ever. That's why it's called a horizon, you'll never reach it (from the pov of an outside observer). Growth-wise, you have to keep in mind that the black hole doesn't grow when matter crosses the horizon, but when the matter gets close enough to the horizon that mass of black hole + mass of new matter creates a blackhole of a larger radius that encompasses t…
How would you ever observe black hole to grow/accreate matter then?
Re: Are Black Holes Actually Dark Energy Stars?
#9I managed to confuse myself into a Zeno’s paradox situation with how black holes grow. This is really exotic space. Time dialation immediately outside of the event horizon would make any matter fall so slow that it would take millions of years of time for an observer to see that material cross the horizon.
Outside observers never see the material cross the horizon, ever. That's why it's called a horizon, you'll never reach it (from the pov of an outside observer). Growth-wise, you have to keep in mind that the black hole doesn't grow when matter crosses the horizon, but when the matter gets close enough to the horizon that mass of black hole + mass of new matter creates a blackhole of a larger radius that encompasses t…
Would this be one way that information would not be destroyed, at least from the reference frame of the outside observer?
Re: Are Black Holes Actually Dark Energy Stars?
#10Earlier quoted context omitted.
Outside observers never see the material cross the horizon, ever. That's why it's called a horizon, you'll never reach it (from the pov of an outside observer). Growth-wise, you have to keep in mind that the black hole doesn't grow when matter crosses the horizon, but when the matter gets close enough to the horizon that mass of black hole + mass of new matter creates a blackhole of a larger radius that encompasses t…
How would you ever observe black hole to grow/accreate matter then?
Infalling matter or radiation becomes ‘simply’ infinitely red-shifted (on account of the slowed time), and hence undetectable to an external observer — and is hence indistinguishable from the bulk of the prior-existing “black hole proper”.