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Joined 3 years ago
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Cake day: June 12th, 2023

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  • There’s no point retaliating once you’re dead unless the enemy knows it’s something you might do. You also can’t make a plain A-bomb arbitrarily big as you need the fuel to be small enough to be subcritical until it’s assembled, and simple enough to assemble that it spends so little time critical but not supercritical that a random decay doesn’t cause a chain reaction to start before the mass is fully compressed. If it starts too early, there’s enough energy to blow the bomb apart, which stops the reaction continuing. The more material you add, the more often random decays happen, and the likelier it becomes that the reaction starts prematurely. The theoretical limit is somewhere between 500kT and 1MT, which isn’t very much for a city buster, especially if you’ve buried it. You’d have to use more than one, but a pure fission bomb is very senstive to nearby nuclear detonations, so only the first one would be likely to work.



  • This has the slight problems that:

    • The UK’s now trying to make VPNs illegal, and was obviously going to because of the obvious flaws in the Online Safety Act.
    • They consulted with MindGeek about the law before passing it, and they own most of the sites with a route to remain viable businesses under the current law, and several agree verification services, so they’re a much better company to blame for this.

  • Modern nukes contain a subcritical mass of fissile material and require an injection of tritium to arm them, and also require tritium for their second stage to get most of their rated yield. Tritium doesn’t last very long, so needs regularly topping up. If you’ve secretly buried a nuke, you’ll have to dig it up pretty often, undermining the advantages of secret burial. There’s also not much point in having a better nuclear deterrent than your enemy knows about, as the goal is to make them know you can destroy them so they’re too scared to attack you rather than to actually destroy them.




  • If it’s the problem that I’ve seen people complain about in the past, it’s effectively the same as HTTPS ‘not supporting’ end to end encryption because it runs over IP and IP packets contain the IP address of where they need to go, so someone can see that two IP addresses are communicating, which is unavoidable as otherwise there’s nothing to say where the data needs to go, so no way for it to get there. Someone did a blog post a couple of years ago claiming Matrix was unsecure as encrypted messages had their destination homeserver in plaintext, but that doesn’t carry any information that isn’t implied by the fact that the message is being sent to that homeserver’s IP.




  • Manchester is also way better than the average, as long as you stay close to the centre. A lot of public transport has been de-privatised in the last few years as it was the first place to do so after regional mayors were granted the authority to do that (in large part because the regional mayor had been lobbying to get the authority to do that), so now there are more buses and they’re better and cheaper.