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Joined 1 year ago
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Cake day: June 24th, 2023

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  • I’m mean life on Earth, obviously. No one is saying that the planet is going to explode or disappear or anything like that. We’re talking about the climate, and life that depends on that climate.

    And before you start coming at me with some “but but such and such life will still…” I’ll clarify again that there is a matter of scale here. A very large number of species that have been around for a very long time will soon be extinct (many have been lost already). So although we might still have mosquitos and jelly-fish for a long time to come, a lot of the complex life that is currently enjoying a comfortable and otherwise-sustainable life on Earth will no longer be able to do so; because of us. That’s what I’m referring to.

    Yes, humans have does this to ‘ourselves’, but we are nowhere near the worst effected life in this situation. In fact, most of the ill effects on humans are just knock-on effects from other life failing. (In particular, reduced capacity to grow food is likely to be a problem for humans.)



  • Using full names like that might be fine for explaining a physical rule, or stating the final result of some calculation - but it certainly would be cumbersome and difficult for actually carrying out the calculations. In many cases we already fill pages with algebra showing how things can be related and rearranged to arrive at new results. That kind of work would be intractable with full word names for the variables, partially because you’d be constantly spilling off the end of the page trying to write the steps; but also because having all that stuff would actually obfuscate what you are trying to do - which is algebra. And during that process, the meanings and values of the pronumerals is not as important has how they interact with each other. So the names are just a distraction.

    For setting up an equation, and for stating the final result, the meanings of the variables are very important; but during the process of manipulating the equations to get the result you want the meanings of the letters are often ignored. You only need to know that it is something that can be multiplied, or inverted, or subtracted, or whatever. Eg. suppose I want to rearrange to get the velocity. I don’t care that I’m dividing both sides by the air density times the drag coefficient and the area… I’m just dividing ρCA, which is an algebraic blob whose interpretation can be saved for some other time.


  • There are a few different physical systems that people are trying to build quantum computers with. Superconducting loops are one of the most promising ones, because of a halfway decent decoherence rate. And yeah, superconducts needing near 0K temperature to operate is a problem. It’s just hard to scale up while everything needs to be so cold. Room-temp superconductivity would be a huge advantage.

    But even then, the decoherence rates are still too high for any long quantum computation. Last I heard, the best qubits are maybe barely getting to good enough errors rates that quantum error correction would be possible - which is great, but ‘possible’ and ‘practical’ still have a significant gap between them.

    So in short, basically everything about the hardware needs to be better; and its just very very hard. Probably too hard to ever achieve the dream of having arbitrary quantum computation. (But there is always the possibility of some big new idea that makes everything work better.)








  • When writing my previous post I had started writing a list of suggested strategies; but I changed my mind about posting that. I’m not a member of Mozilla. I don’t know what particular challenges they face, and my expertise are not in not-for-profit fundraising. So although I do have ideas, I don’t really want to get into a trap of trying to defend my half-arse ideas against people picking them apart. It’s beside the point. The point is just that it is achievable, as evidenced by other organisations achieving it.

    I will say though that they could at least just mention on the Firefox ‘successful update’ page that Firefox is supported by donations, and give a link. A lot of people really like Firefox; and I think that if Firefox asked for donations, they would get more donations.