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Cake day: June 25th, 2025

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  • From skimming through the actual paper, it seems that quantum gravity is a theory of physics, more general than general relativity, where spacetime itself is something that’s generated by a formal system of a formal language, a finite or small infinite set of axioms (fundamental physical laws) and rules for the creation of algorithms. What’s seemingly proved in the paper is that there are theorems in this system which cannot be proven, because they are too complex. But theorems in this sense mean states of spacetime or energy or whatever, meaning that ultra-complex states cannot be modelled with this model. And allegedly these kinds of ultra-complex states occur in high-energy situations.

    I’m not saying it’s gospel but the article isn’t as absurd as it first seems. Still I doubt this actually proves us not living in asimulation.



  • Won’t work sadly, the “counter sound” can’t be in phase in multiple locations because of delay and reflections. Headphones can do ANC because the ear is basically a single point so the mic can pick up exactly what you’re about to hear and then compensate.

    Using a speaker like that would just create double the leafblower noise.




  • carmo55@lemmy.ziptoScience Memes@mander.xyzIT'S A TRAP
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    1 month ago

    A practical application is for example in probability theory (or anywhere that deals with measures) such as this question:

    If we generate a random real number from 0 to 1, what is the probability that it is rational?

    Because we know that the continuum is so much larger in a sense than the set of rationals, we can answer this confidently and say the probability is zero, even though it is theoretically possible for us to get a rational number.

    Statistics deals with similar scenarios quite frequently, and without it we wouldn’t have the modern scientific method.


  • carmo55@lemmy.ziptoScience Memes@mander.xyzIT'S A TRAP
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    1 month ago

    There are infinitely many rational numbers between any two integers (or any two rationals), yet the rationals are still countable, so this reasoning doesn’t hold.

    The only simple intuition for the uncountability of the reals I know of is Cantor’s diagonal argument.




  • I think aliexpress EMF paint has a good chance of working. All you need is some kind of conductor (usually graphite, that’s literally just pencil lead) mixed with some kind of adhesive. I’m not sure how the adhesive doesn’t stop electricity flow (maybe there’s just so much graphite it doesn’t matter), anyways you can buy graphite spray in any electronics hobby store, a paint is just that with a different consistency.