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PeterDonis's latest activity
PeterDonis
replied to the thread
I
Violation of Bell Inequality with unentangled photons
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Even in "short form", your state was not entangled. It was a product state. That's obvious from what you wrote. Assume the particles...
Sep 4, 2025
PeterDonis
replied to the thread
I
Violation of Bell Inequality with unentangled photons
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You need to prepare an entangled state, as @gentzen has pointed out. For example, a momentum entangled state could be (ignoring...
Sep 4, 2025
PeterDonis
reacted to
renormalize's post
in the thread
I
A sufficient condition for integrability of equation ##\nabla g=0##
with
Like
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How is this paper relevant to your claim in post #23? The tetrad ##e## and spin-connection ##\omega## appear nowhere in the Schmidt...
Sep 4, 2025
PeterDonis
reacted to
Ibix's post
in the thread
I
Mass conservation in black holes
with
Like
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No it doesn't - where did you get that idea?
Sep 4, 2025
PeterDonis
reacted to
phinds's post
in the thread
I
Mass conservation in black holes
with
Like
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Huh? Where did you get THAT idea?
Sep 4, 2025
PeterDonis
reacted to
Ibix's post
in the thread
I
Mass conservation in black holes
with
Like
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The mass of matter doesn't become infinite as it approaches the event horizon. Where did you get the idea that it does?
Sep 4, 2025
PeterDonis
replied to the thread
Does it make sense to build new radio telescopes?
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Not if they're built in space. Which is the obvious next step, just as it was with optical telescopes.
Sep 4, 2025
PeterDonis
reacted to
Vanadium 50's post
in the thread
B
Calculate Red Shift w/ Shwarzschild Metric: A Hypothetical Black Hole Any Size?
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Go ahead, poke the bear. Um, before indulging in obnoxious snottery, you might want to get your facts straight. The equivalence...
Sep 3, 2025
PeterDonis
replied to the thread
I
Question about discussions around quantum interpretations
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This is phrased rather confusingly. What you mean is that non-relativistic QM is wrong. But I don't think the OP means to restrict...
Sep 3, 2025
PeterDonis
reacted to
Ivan Seeking's post
in the thread
Today I Learned
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Haha
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When I was a kid, my mother had an ever-growing list of excuses I had made to not do something, stuck to the refrigerator door. I should...
Sep 3, 2025
PeterDonis
reacted to
Dale's post
in the thread
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How can a black hole absorb matter?
with
Like
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Why? The existence of any finite ##\Delta \tau## is sufficient. @Ibix argument doesn’t rely on there being an upper bound.
Sep 3, 2025
PeterDonis
replied to the thread
B
How can a black hole absorb matter?
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Another simple correcting argument is here:
Sep 3, 2025
PeterDonis
replied to the thread
B
How can a black hole absorb matter?
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Here's one simple good and valid argument: this... ...already assumes that there is a black hole. A black hole is defined as a region...
Sep 3, 2025
PeterDonis
reacted to
Ibix's post
in the thread
B
How can a black hole absorb matter?
with
Like
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I don't think you were unclear. I just don't see that you are saying anything different from what I said. In a universe with a black...
Sep 3, 2025
PeterDonis
replied to the thread
B
How can a black hole absorb matter?
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True. False. The proper phrasing in daily language is "the observer never sees light signals from the horizon formation". But it is a...
Sep 3, 2025
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