Comments by "Jovet" (@jovetj) on "Veritasium" channel.

  1. 32:14 And HARD ASS WORK! That man literally toiled away for years!
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  2. I am amazed they found glass that can handle the temperature and temperature gradient!
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  3.  @nohah8804  All you have to understand is that, just as we have multiple spacial dimensions (the three we know), there are multiple "dimensions" of numbers. "Real" numbers all form a 1-dimensional line. If zero is at the middle, then we can say all negative numbers are to the left, and all positive numbers are to the right. This is visualized at 19:15 in the video. The video assumes viewers know why a square root of a negative number is not possible with Real numbers. The reason is simple: there is no real number that can be a negative product. 5 times 5 is 25. But -5 times -5 is also 25—the negatives cancel. So, what is the square root of -25? These Complex numbers form a second dimension of the number plane, visualized in the video at 19:20. This video doesn't discuss them, but there are hyper-complex numbers which add even more "dimensions" to the number line(s).
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  4.  @migaloo364  Few people actually learn how to think. And, even fewer people in this day and age do, since the skill is not actually taught.
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  5. So, what about Nikumaroro Island?
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  6. Black holes don't actually have singularities. The idea that they do is an oft-regurgitated fallacy. The universe does not "do" infinities. An infinity cannot describe anything in the physical world. There cannot be infinite density, infinite speed, infinite temperature, infinite gravity, infinite mass, etc. A black hole cannot have infinite density any more than it could have infinite mass. Physical theories such as General Reality are incomplete when it comes to the structure inside a black hole. Our understanding of gravity on a quantum level is nil. We will never actually understand the structure of matter and spacetime inside a black hole until a promising theory of quantum gravity is developed.
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  7. @Fenris Waffles I could make the same demand of you—give evidence or prove they do exist. I'm sure you can find a proof that division by zero is undefined. Maybe you can find a proof that positive mass can exist in zero volume—I can't. Since we have no idea how gravity works at a quantum level, I think you'd be hard pressed to find a theory or proof that a singularity is how a black hole functions. The notion that black hole singularities would be the one exception to the lack of physical infinities in the universe is laughable, at best.
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  8. 7. The environmental impact of an electric car and the power used to charge it is far greater than that of a gasoline car.
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  9. But, when are we going to give the Bristol Stool Chart the expansion it so rightfully deserves??
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  10. One "study" isn't necessarily correct or damning. There are flawed and unfaithful studies all the time.
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  11. You imagined the whole thing.
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  12. This is beautiful. What a testament to human determination! This is an excellent video.
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  13. There is mo such thing as a singularity. It's a figment of mathematical imagination.
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  14. ASCII is 7-bits.
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  15. 26:22 What about rail anchors?
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  16. 100101
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  17. Science doesn't prove things. Only your imagination does. We do see "mid-sized" back holes. The proposals that black holes can only marge so many times (or to a certain size), and that a cloud collapsing to them can have any size, are both preposterous.
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  18. How does a point of zero volume have a spin? How does it even have mass?
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  19. How does a singularity with "no real mass" get more massive? Are you trying to say that the gravitational field of a black hole is the mass and energy that have fallen into it?
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  20. I find the physical existence of a singularity completely preposterous. But that does not exclude black holes from existing; it excludes infinite densities and infinite curvature of spacetime and infinite anything else. The mechanics of matter and spacetime inside a black hole are completely unknown to us at this point. No pun intended. Matter and energy are not the same thing, just as ice and water vapor are not the same thing. They can be considered equivalent in some contexts, but to flat-out declare them the same doesn't recognize how differently they operate. Matter, the quantity of which is measured as mass, can never travel at the speed of light. Mass slows a particle down from the pure speed of causality. The differences may be more relaxed around the event horizon of a black hole, but massless energy can still do things that matter cannot. So, yes, "matter and energy" need to be pointed out there, just as the gravitational field of all the light in a star cannot be written off. It will still be many years before we really have an intelligent guess at what is actually going on inside a black hole. I am happy to hear about how energy does not cause a gravitational field, though.
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  21. Well, I don't know what is with me, but I've convinced YouTube to eat my written replies now twice. And I don't have time to write it out again. But you didn't answer my last question.
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  22. “I think a new AI component was recently added to YouTube that checks the validity of claims made in each reply and discards ones that don’t agree with known science. Perhaps your recent two posts did not get past this new filter.” No. I clumsily clicked away from the reply box and it collapsed and threw away all I had written. I'm usually pretty careful about that. I've done it three times on this video. You still haven't answered my question. To refresh your memory, my last question was "I am happy to hear about how energy does not cause a gravitational field, though." You can try to be condescending and lecture me all you want, but it's extremely sloppy of you to put "known science" on some kind of irrefutable pedestal. Everything you have written about black holes makes perfect sense, but is still theoretical. How many times in science—in physics alone—have observations and data come along that didn't make any sense with "known science"? Many times. Sometimes the new observations are flawed or a datum is wrong, but sometimes the "known science" is incomplete. That is what makes scientific study so exciting. At least, for most of us.
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  23. 10:15 She's exactly right! I point that out to people regularly, but I suspect they don't pay much attention.
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  24.  @nuxxism  See also: Forklift Safety
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  25. Any infinity or undefined result regarding the physical universe should make any mathematician or scientist uncomfortable with whatever theory points to it.
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  26. The universe is not infinite because nothing goes on forever. Except nothing.
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  27. Rational logic and metaphysics.
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  28. It's not circular logic. Just cute.
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  29. Because nothing is the only thing that can go on forever. As soon as you have something, then you have something and not something—two things, each with a limit.
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  30.  Tom Rhodes  Truth does not always make sense. The two are not automatically related at all.
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  31.  @evamccray6500  If "truth has to make sense" then why is the world so messed up? It would be easy for everyone to distinguish truth from fiction. But it isn't. We are all different, we are all not the same. If truth always made sense, we would have everything figured out by now. But we don't. Everyone has different viewpoints, different through process, and even different aptitudes. Not everyone has the same means, intuition or intellectual capacity, reasoning or deductive ability, or even care to derive "truth."
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  32.  @evamccray6500  And if truth always made sense, it would not be so easy to ignore.
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  33. 4:34 What a salute.
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  34. Because people are stupid. Even when they think they're smart.
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