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Joined 3 years ago
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Cake day: June 15th, 2023

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  • I wonder if this is newly built/to be built data centers for AI, or ones that previously existed/ are being built for general web infrastructure. The article doesn’t say.

    The age of the DC doesn’t really matter. Its whether it was designed to be an “open loop” or “closed loop” cooling system. Closed loop DC use surprisingly little water because they capture and recycle it. A fast food restaurant would likely use more water than a closed looped DC. The big offending Datacenters for water use are the Open Loop design. These use massive amounts of water.

    Close to me there are two DCs under construction. One is a large colocation DC and is closed loop. The other is a new AWS DC, and it is open loop. So as you can see, age isn’t really the determining factor.

    So you’re asking yourself, why use open loop at all? Its energy bill is cheaper! Open loop uses swamp coolers (evaporative cooling) Closed looped requires more electricity for cooling using more traditional phase-change coolant (same as residential air conditioners).





  • This sounds like politicians that don’t understand the technology.

    Anyone can create an AI model (including Gen AI LLMs). I personally created on for a hobby project trained exclusively on a series of old public domain novels from the early 1900s. Don’t get me wrong, my AI model sucks and only produced barely coherent responses, but it absolutely meets the definition of an AI model.

    So how would this White House action (if implemented into law) affect me and my model?

    • Would I have to submit my model to a government agency to run it on my local computer?
    • Would it only apply to models deployed for the consumption of others?
    • Private companies that build their own AI models purely for internal business purposes not used for public consumption, would they be obligated to put it them through some government process before these models could be used inside companies?
    • Is it perhaps not all AI models would need to go through this government approval process, but then what criteria defines a model that would vs one that wouldn’t?

  • As long as the transaction doesn’t require biometrics, I wonder if you could have a traditional smartphone (iphone/android) located physically somewhere else, and a self hosted VPN that would allow you to VPN and remote control the traditional smartphone remotely. So you could run the real bank app on real smartphone hardware (no emulation), and not have to carry it having all access through your Linux phone with a remote control client.

    The downside is you’d be responsible for the burden for securing this solution, as your banking app would be one of the most critically security data concerns.






  • 39% loss in cold is straight up false unless you’re talking like -20F.

    My guess is that this number may be possibly accurate for cars without a thermal management system for the battery. In the USA, this would be exactly one car model and even of those there are years where it would be fine: the Nissan Leaf.

    The Leaf came out in 2010 and has been air cooled until just this year in 2026. Some models had a battery heater though, but not all. I could see for a model without a heater and extreme cold the 39% range suppression. However, since its only one car, putting that 39% number is disingenuous because it suggest its more widespread when it isn’t.





  • This is an uncomfortably well written and thought out article. Its also helped me put into words some of my own conceptual reluctance to fully embrace LLMs in my work. I know how I’ve learned from tackling problems on my own in my career. I worry that the seductive siren of the “right answer” LLM without the effort may be too strong for me to resist or too subtle for me to notice.

    Whats the answer? Become the constant contrarian never able to trust anything these output? At that point the value of using the LLM at all is erased.



  • I don’t really know what to say, but thank you is a start, I might actually be a bit down.

    This can happen to any of us. If you need help, seek it. There’s no shame it in. We are not born with the tools to remedy everything. Many times we need to seek help outside of ourselves. Remember that life is worth living.

    LEO is still in over 10-20k a cubsat no?

    Nope! That same 1kg cubesat you’re referring to can be put in Sun synchronous orbit (meaning always has solar power exposure) for $5k-$6k on a rideshare launch that launch every 3 to 6 months. Picosats and even Femtosats are all smaller and cheaper with some less than $1k (but you may have to wait years for a launch).

    I went for a walk, touched grass, and remembered one of my old inventions that I never had the time to build (and my homemade 3D printer wasn’t up to the job, but my new store bought one is, probably).

    I’m glad to hear this! You’ve obviously got some incredible skills and experience. I hope you’re able to recapture your spark. It sounds like you’re already on the path to doing so!


  • and feel not so interested in just following say how a meshstatic works or just buy one.

    If you’re at the high end of knowledge and skill, as it sounds like you are, you are even closer to being able to take advantage of technology that exists today that is cheap now that most of us. Ten years ago:

    • a LiDAR system would have cost thousands of dollars. Today you can buy them for about $100.
    • Inconel was only available to the state-of-the-art industrial processes and was very hard to manufacture parts with. Today you can upload your files, have your parts made via additive manufacturing with Inconel and those parts shipped right to your door for affordable prices.
    • Computing power has significantly increased. TPUs are bringing down not only the cost of Tensor operations, but the energy consumption needed for equal amount of processing from 10 years ago.
    • the cost per kg for delivering a payload to LEO has dropped dramatically in the last 10 years and continues to do so. More orbital inclinations are available on rideshare flights than ever before including many sun synchronous allowing for continuous solar power. Some idiot like me can actually afford to put an object in LEO. That’s freakin’ amazing!
    • battery technology has evolved drastically in 10 years for commercially available product from cheap and plentiful LFPs to Na-ion cells that can operation without loss at - 40 °C without power loss.

    “Everything” also has been built which doesn’t help. Or so I feel!

    I can’t even imagine having this thought. Honestly, with your skill level I am getting the feeling this has nothing to do with the state of technology right now. I’m not going to pry into your personal life, but I’m wondering if you’re facing challenges that have nothing to do with technology, but are causing you distress depressing your interests in things you used to love. I could be way off, and if so forgive me for presuming.


  • Don’t get me wrong, it’s still a fun space but not much has happened the last ten years there (or prove me wrong 😁!)

    10ish years ago when R Pi and Arduino entered the scene it was a big splash, but the most benefit really only occurred for folks that could take the raw parts and had the ability to built a new solution largely without help from others. Its even better today because you can buy a ready-made Pi Hat, fully documented, with drivers, to dramatically expand the functionality of an R Pi today. 10 years ago, you’d be laying out your own PCB, etching it yourself, and soldiering those SMT components with your own hot air pencil. Now you don’t, and you can access that functionality to keep building on whatever it is you’re actually trying to build.

    Nearly everything has a RestAPI now. This means coding solutions are much more accessible for modifications. Software Defined Radio is cheap and easy now, all with over a decade of documented solutions and parts available. This leads to things like Meshtastic and Flipper.

    Its a much more accessible space to these cheap and functional technologies than it was 10ish years ago.