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Cake day: January 24th, 2024

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  • I_Has_A_Hat@lemmy.worldtoAsklemmy@lemmy.mlWhy would'nt this work?
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    3 months ago

    So folks have already explained the stick, but you’re actually somewhat close to one of the ways you can sort of bend the rules of FTL, at least when it comes to a group of photons.

    Instead of a stick, imagine a laser on earth pointed at one edge of the moon. Now suddenly shift the laser to the other side of the moon. What happens to the laser point on the moon’s surface?

    Well, it still takes light speed (1.3 seconds to the moon) for the movement to take effect, but once it starts, the “point” will “travel” to the other side faster than light. It’s not the same photons; and if you could trace the path of the laser, you’d find that the photons space out so much that there are gaps like a dotted line; but if you had a set of sensors on each side of the moon set up to detect the laser, they would find that the time between the first and second sensor detecting the beam would be faster than what light speed would typically allow.

    It’s not exactly practical, and it’s such an edge case that I doubt we can find a good way to use it, but yeah; FTL through arc lengths can kind of be a thing. At least if you tilt your head and squint funny at it.





  • If the US reserves gold, why do they also reserve silver? Why do they reserve grain, oil, steel, cheese, or foreign currencies?

    Because it’s dumb to put all your eggs in one basket and the more you diversify, the safer it is. Like it or not, Bitcoin is an asset; and barring a global disaster that knocks out all electronics, it’s unlikely to go away. It makes sense to have some and sit on it.

    Will there come a time when everything falls apart and the only way to trade with another power is with tons of wheels of cheese? Probably not, but if it does, the US is ready.

    Will the same ever happen with Bitcoin? Probably not, but if it does, the US is ready.











  • I_Has_A_Hat@lemmy.worldtoScience Memes@mander.xyzWe lost Keanu
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    7 months ago

    I don’t get the racism argument. Claiming there was an ancient civilization existed that taught early civilizations isn’t racist. That an ient race doesn’t exist anymore. The early civilizations they claim to have taught don’t exist anymore. Modern day Egyptians have as much to do with ancient Egyptians as they do with modern Polynesians. At a certain point, we have to recognize that we’re talking about so long ago that race is out of the equation.

    Like, don’t get me wrong, his claims aren’t scientific and he definitely seems like someone with a theory in search of facts. But I seriously do not get the racism claim. It doesn’t belittle modern societies because no modern society can really claim ownership of shit that happened over 10,000 years ago. It’s insane to think otherwise.