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Joined 1 year ago
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Cake day: July 18th, 2023

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  • Black holes don’t swallow everything around them for the same reason that the sun hasn’t swallowed all the planets.

    I wasn’t implying this. I was referring to how they would gradually increase in mass as they absorb particles that came close enough — the same way that all other matter accumulates.

    Gravitational capture usually involves multiple objects, because the trajectory has to get nudged for a collision to happen.

    What about the countless proton sized blackholes and matter dispersed between them? Wouldn’t they all interact with each other? How come the visible matter accumulated but the black holes did not? Are they so small that they’re all around us but too small to interact with non-primordial black holes?

    A gaseous body collects mass at a faster rate than a black hole with the same mass

    Because the gas/mass is distributed over a larger area? As in, gas has a larger gravitational “dragnet”, relative to its mass?





  • What doesn’t make sense is how haven’t these primordial black holes accumulated to form massive objects that dominate the universe? The distribution of dark matter implies that it’s widely dispersed throughout the universe, amongst all other matter, but wouldn’t these primordial black holes have started to attract matter and grown in mass from 1 second after the Big Bang? Wouldn’t the vast majority of these proton sized black holes no longer be proton sized? Wouldn’t they have grown until they absorbed most visible matter in their vicinity? If this were true wouldn’t it mean most of the dark voids between galaxies and stars are actually gravitationally dominated by black holes of varying sizes? How could our observations to date have missed that? Wouldn’t pointing the JWST at any void show signs of infrared gravitational lensing? Oh god I’ve gone cross-eyed…

    Edit:

    “Even if you take into account clustering, the time scales for the merger are so long that they would only merge into really massive black holes over the entire age of the universe,” he continued.

    If this were true, how have all the sub-atomic particles accumulated to form visible matter and galaxies? Do these black holes somehow have less mass than other particles? If so, how could they possibly make up most of the gravity in the universe — more gravity than all the visible matter — yet their gravity is so weak that they don’t accumulate into larger clusters?














  • Thanks. I was pointing the ridiculousness of journalists stating information — on the fucking internet — without directly linking to evidence. They have a world of sources they could link to, probably that their own company reported on in the past, and that they — as journalists — should have cross referenced before stating that information. Why should consumers have to independently Google pieces of information when the platform can hyperlink to numerous sources for verification?

    You see the absurdity in stating information as fact, without sourcing evidence, right? This isn’t fucking Lemmy or Reddit as a source. This is a major news organization, staffed with journalists who completed an entire degree being educated in how to source and reference information…