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Joined 1 year ago
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Cake day: June 30th, 2023

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  • I think you’ve got to be a little careful how you say what you mean here:

    In light’s own reference frame, this is true-ish from a pure special relativity perspective. Velocity is sort of undefined in that case because at c, Lorentz transformations bring all distances to zero, meaning that the photon is everywhere at the SAME time. Or said another way, it’s everywhere on its own simultaneity curve. Maybe this is splitting hairs on the definition of “undefined” because, mathematically yeah you’re right, but a rock also moves zero distance in zero time. Its more like it’s velocity doesnt make sense to compute.

    From the outside though (as in a non photon frame) this is not true at all. Using laws of refraction you can compute, and even photograph and verify a real, defined speed for a photon in a medium.





  • Yes it 100% fucking is.

    Given the choice between ruin the country and the planet in that order and “this candidate is uninspired” or “wow not very good”, you have to be a giant entitled sack of shit to make everyone go down the road of ruined country and planet. We would ALL like it to be a better choice, but for christs sake don’t be an obstinate fuckstick: it’s not getting you a better candidate, it’s literally just punishing everyone if you stay home.

    Choose between: “you might get to choose a good option again”, and “you almost definitely won’t”. That’s what’s on the table. You HAVE a preference, but it’s not an inspired choice. When it’s orange Hitler vs green Hitler, by all means, make your stand. If you are making a stand between orange Hitler and “meh” you deserve a brow beating every hour of every day until November.