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Cake day: February 1st, 2024

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  • No, that’s not really a useful way of modeling it for the case of light traveling through a linear medium.

    The absorption/re-emission model implicitly localizes the photons, which is problematic — think about it in an uncertainty principle (or diffraction limit) picture: it implies that the momentum is highly uncertain, which means that the light would get absorbed but re-emitted in every direction, which doesn’t happen. So instead you can make arguments about it being a delocalized photon and being absorbed and re-emitted coherently across the material, but this isn’t really the same thing as the “ping pong balls stopping and starting again” model.

    Another problem is to ask why the light doesn’t change color in a (linear) medium — because if it’s getting absorbed and re-emitted, and is not hitting a nice absorption line, why wouldn’t it change energy by exchanging with the environment/other degrees of freedom? (The answer is it does do this — it’s called Raman scattering, but that is generally a very weak effect.)

    The absorption/emission picture does work for things like fluorescence. But Maxwell’s equations, the Schrödinger equation, QED — these are wave equations.






  • good enough simulations that you can’t tell the difference.

    This requires us having actual conversations with those dead people to compare against, which we obviously can’t do.

    There is simply not enough information to train a model on of a dead person to create a comprehensive model of how they would respond in arbitrary conversations. You may be able to train with some depth in their field of expertise, but the whole point is to talk about things which they have no experience with, or at least, things which weren’t known then.

    So sure, maybe we get a model that makes you think you’re talking to them, but that’s no different than just having a dream or an acid trip where you’re chatting with Einstein.



  • Pick your favorite tech company, pick a small team with a “nerdy” engineering mandate, and I’m confident you’ll find the academic, geeky science and engineering types you’re talking about.

    They probably aren’t very vocal though, because 1) there’s a huge PR/marketing budget which is responsible for being the face of the company, and 2) well…these are nerdy STEM folks who probably like their job because they get very well compensated to be nerdy STEM types, and not because they’re fanboys/girls.








  • For very simple tasks you can usually blindly log in and run commands. I’ve done this with very simple tasks, e.g., rebooting or bringing up a network interface. It’s maybe not the smartest, but basically, just type root, the root password, and dhclient eth0 or whatever magic you need. No display required, unless you make a typo…

    In your specific case, you could have a shell script that stops VMs and disables passthrough, so you just log in and invoke that script. Bonus points if you create a dedicated user with that script set as their shell (or just put in the appropriate dot rc file).