constants r fun

Comments

• Kaput@lemmy.world ⁨2⁩ ⁨minutes⁩ ago

  Since I came to term with my limited capacity to understand those mathematics. I’ve decided to enjoy it like the match selling little girl that ate stale bread while smelling the roast. Based on this very remote understanding of the matter, My theory is that all those possible universes are actually just one and that what we are observing or experiencing is the part we are tuned to. Like a radio receiving all the waves but being tuned to a single channel.

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• lemming@sh.itjust.works ⁨23⁩ ⁨minutes⁩ ago

  I know some people don’t, but I kind of like weak anthropic principle, if you take it as a reason and not an explanation. The only universe that can contain someone trying to figure the universe out must be in the white region (as far as we know).

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• Deme@sopuli.xyz ⁨2⁩ ⁨hours⁩ ago

  So the dent in the ground is a perfect fit for the puddle that formed in it?!

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  • bleistift2@sopuli.xyz ⁨34⁩ ⁨seconds⁩ ago

    Remind me where that quote is from

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• montechristo@feddit.org ⁨51⁩ ⁨minutes⁩ ago

  To even think that there are universes where we can’t stop after second order perturbation theory in the fine structure constant. Scary thought.

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• gbzm@piefed.social ⁨4⁩ ⁨hours⁩ ago

  Reverse image search gave this pop-sci article from 2009:

  https://arxiv.org/abs/0905.1283

  Slightly different though. No grey part, though the legend argues that deutérium is unstable below the horizontal line, and “We are here” in smaller font

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• Sibbo@sopuli.xyz ⁨5⁩ ⁨hours⁩ ago

  Source or additional explanation?

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  • Sarothazrom@lemmy.world ⁨5⁩ ⁨hours⁩ ago

    Has to do with the precise strength of the Strong Nuclear Force’s ability to form the atoms we know.

    If it were even a little bit different, the entire universe would be a lot bit different.

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  • gbzm@piefed.social ⁨4⁩ ⁨hours⁩ ago

    https://arxiv.org/abs/0905.1283

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• ThisIsAManWhoKnowsHowToGling@lemmy.dbzer0.com ⁨6⁩ ⁨hours⁩ ago

  Whats the gray at the bottom, though

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  • vivalapivo@lemmy.today ⁨4⁩ ⁨hours⁩ ago

    Particles do not stick to each other. The universe is just a goo organized solely by gravity

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    • gbzm@piefed.social ⁨4⁩ ⁨hours⁩ ago

      Nope, that’s the red strip on the left.

      https://arxiv.org/abs/0905.1283

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  • abbadon420@sh.itjust.works ⁨5⁩ ⁨hours⁩ ago

    Thoughts and prayers

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• nialv7@lemmy.world ⁨5⁩ ⁨hours⁩ ago

  are we that good at going from fundamental laws to what actually will happen in the macro world? e.g. we can’t even figure out why certain materials are superconductive at high temperatures.

  so i doubt the counterfactual presented in this graph is accurate. we just know if the coupling constant is different the universe will look completely different, but we would have no idea if intelligent life could still arise.

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• davidgro@lemmy.world ⁨5⁩ ⁨hours⁩ ago

  Can those values actually go above 1 even in theory?

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  • mumblerfish@lemmy.world ⁨3⁩ ⁨hours⁩ ago

    Well… The effecrive coupling constant changes with energy. A high energy experiment behaves differently than at lower energies. The coupling constant is above 1 for the strong force at low energies, but there is ‘asymptotic freedom’ which makes it below 1 at high energies. For EM it is always below 1. I would guess they reference a ‘bare’ value here.

    The purpose of these graphs are not how they look in our universe though. Rather a common way of doing anthropic style arguments. Without measuring the value of the constants, from the graph we can know from just knowing there are stable carbon and non-relativistic atoms pretty exactly where the values of the constants must be. Similar arguments can be used to pinpoint the cosmological constant from the existance of galaxies.

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