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Cake day: 2023年7月2日

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  • It’s not a particle in the regular sense you might know, like an electron. The pair that comes into existence is meant to annihilate immediately (meaning there’s zero energy gain or loss) but because of where it appeared it can’t.

    When it appears as I described, there suddenly exists a real particle in the universe outside the black hole, so the universe gained +1 in energy.

    But energy can’t be created or destroyed, so that +1 means somewhere there must be a -1. And that somewhere is the black hole which caused the particle to exist in the first place by swallowing its pair.

    It’s not very intuitive, that’s the fun part about quantum mechanics: nothing is intuitive.








  • Very often a virtual particle–antiparticle pair appears and because they’re very happy they started existing, they immediately hug each other not knowing that will cause them to annihilate each other and disappear.

    Every once in a while, the pair appears in a very interesting position: one is outside the event horizon of a black hole (let’s call this one Pinocchio) and the other inside it (let’s call it 3735928559). Because nothing can escape a black hole, they can’t really hug, so Pinocchio says “I’m a real boy particle” and stops being virtual and becomes real, while 3735928559 continues its descent into madness singularity.

    Unfortunately, the process means there now exists something (Pinocchio) where there wasn’t anything before and that takes energy. And that energy comes from the particle that stayed behind which is now part of the black hole, so it effectively takes energy out of the black hole. You may have heard that energy cannot be created or destroyed, only transformed, that’s essentially what happens here.

    The Pinocchios go away from the black hole, so they can end up basically anywhere in the universe.

    As for the timescales, they entirely depend on the black hole’s size. Really tiny black holes evaporate in a matter of seconds, the supermassive ones in a matter of trillions of trillions of trillions of trillions… years.

    In fact, black holes will be the last macroscopic structures to exist in the universe because the evaporation is extremely slow - every planet and every star and every gas cloud and every atom will cease to exist long before the last black hole evaporates.






  • Have you ever read Bible? It’s, not unlike Nazism, an ideology defined by violence and the rejection of the humanity of minority populations.

    I do condemn people for their actions and the impact they have on the world. If some Nazi doesn’t do anything personally, is it fine that they’re a Nazi? Simply being part of the group that does horrible things is supporting them.

    And I’m not talking about dictatorships like in the middle east where you can choose between being a muslim and death. I’m talking about full-on western freedom enjoying people who by choice are spreading religions of hate, be it christianity, islam or hinduism.

    As another example, one good thing of Nazis is supporting local economy. Hopefully we both agree that doesn’t really offset the rest of Nazism and make it any better.

    So imagine someone told you “yeah, they’re a Nazi, but they only support the good parts, like local economy growth, not the murdering of black people and gays.”

    If the above sounds ridiculous to you, congrats, you finally see how ridiculous it sounds to me when you say “they’re Christians, but they don’t support murdering of gays and black people, they just believe in God.”


    No idea who Zohran Mamdani is, but their faith in whatever sky daddy should be ridiculed. There’s no place for religion in the modern world and 500 years from now people will think how weird it is that we had access to all those information on the internet but still believed in magical beings who are contradicted like 5 times every 2 pages of their respective holy books.


    TL;DR islam and christianity are extremely hateful religions and should not be tolerated, no matter whether you claim to just pick the “good parts” of the religion.