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

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  • Not sure about the self-driving, but he had a video challenging the idea that electrons in wires that carry electricity. Basically arguing that it was the electric fields themselves that carried the power, which is largely outside of the actual wires.

    Not sure if that’s the same one where he asked what would happen if you used a light switch connected to a lamp by two wires. Apart from some truly egregious mistaken units (1s/c as unit of time), I vaguely recall thinking it was basically a huge clusterfuck of misunderstandings about what an electrical circuit diagram even is (stuff like real vs idealized components, parasitic capacitance / inductance etc.)

    They’re the kind of ‘Well actually’ half true factoids that you never hope to encounter in the wild if you actually understand the stuff. For someone claiming to be enthusiastic about science communication he did one heck of a job poisoning concepts with subtly wrong/misleading explanations that make it a lot harder to explain stuff to anyone with the misfortune to encounter his version first.





  • I think /r/science is misunderstood. The moderators had quite a clear vision on the kind of discussion they wanted and the kind they did not. This caused some friction every time a post reached /r/all but I don’t see that as a bad thing.

    If anything that’s an ideal situation. People encounter a new community they’re interested in, break some rules in ignorance, the mods interfere and the violations are rolled back, the new users then either follow the rules or leave.

    Not sure how they’re doing with the API changes, pretty sure they had some automation going. Don’t think they’re compatible with reddit’s new view on making communities as interchangeable as possible to stop friction from interfering with ad revenue.






  • Fair. It’s not too hard, but most lemmy UIs make it a bit harder than it needs to be because they want to be a fancy JavaScript-ridden mess of html tags.

    On old.lemmy.world it is supremely easy, you just use the element picker tool of uBlock to select all posts, add the ‘magic’ command :contains(reddit) to filter out the word you don’t want (in this case reddit), and you’ve got your filter. This would result in old.lemmy.world##.post:contains(reddit).

    On lemmy.world it is trickier because it is the kind of HTML no sane person would write. Doing the above you end up with lemmy.world##div.mt-2.post-listing:contains(reddit) which is messy, and misses a line that is used to divide the posts. With some manual tuning you can first simplify the first part to ##.post-listing:contains(reddit) and then add :xpath(.|following::hr[1]) to get rid of the annoying line. This results in ##.post-listing:contains(reddit):xpath(.|following::hr[1]).