Philosoraptor [he/him, comrade/them]

  • 34 Posts
  • 362 Comments
Joined 6 years ago
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Cake day: August 3rd, 2020

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  • It was definitely already a thing. Grandfather clocks operate on gravity batteries with chains and metal weights. The issue has always been scaling them up in a way that isn’t insanely expensive: all those heavy bobs and chains on a clock can be replaced with a watch battery that’s like 1/1000 the weight and will run for just as long. However, chemical batteries–even rechargeable ones–eventually deteriorate and turn into waste. Big chunks of concrete or iron or (most commonly I think) water last a lot longer. You get much less energy density, but much longer lifespan (and using stuff that’s pretty common already). As we (speaking loosely, and not amerikkka ) have started caring more about sustainability, batteries that can be made from recycled crap we have laying around and maintained like basically giant clocks start looking more attractive.

    The other big thing that’s changed is scale of renewable production. Most battery solutions have been focused on point-of-use storage, and there the energy density matters a lot. I can put a 10 kw/h lithium battery in a closet at my house. To store the same amount of energy with gravity, I’d have to put King Kong up on the Empire State Building and drop him off, which I cannot do in my garage. However, as more renewable energy capacity starts spinning up at major centralized locations where space is at less of a premium, the cost/benefit shifts. I can build something like the thing in the article (or a huge water pump in a reservoir), and yeah it takes up a huge amount of space, but it’s in the middle of nowhere rather than my house, and it effectively lasts forever relative to a Tesla power wall or whatever. If you’re regularly producing hundreds of extra megawatts of solar power and space isn’t at a premium, then the stability and longevity start to make the cost and size worth it.














  • No argument from me. It absolutely has its uses–some potentially really significant–and “Attention is All You Need” and the subsequent literature very much is a landmark development in automation. It’s just terrible for like 97% of the use cases it’s being pushed for right now, as well as being developed with the explicit goal of actively making the world worse (because it’s under the control of the world’s worst guys, for the most part). If this tech were genuinely open, being developed responsibly, and used for the things it is genuinely good at without being shoved into applications it isn’t good for, it could definitely solve some problems.