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Cake day: June 26th, 2023

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  • The dndmemes protests were a pretty incredible thing while they lasted. The mods changed the subreddit to “nsfw” because that disabled most of the monetization. Then Reddit admins told them the subreddit obviously wasn’t really nsfw and to change it to accurately reflect the subreddit content.

    …so the mods changed the subreddit rules to allow actual nsfw content and people went nuts. In multiple senses of the term.

    Of course “accurately reflecting the subreddit” wasn’t what Reddit really cared about. They wanted to preserve the advertising stream for a popular subreddit, and this did the opposite of that. Reddit admins soon after basically said “remove nsfw content, restore the subreddit to what it used to be, do what we say or we’ll replace you with a mod team of our own choosing”.












  • vithigar@lemmy.catoScience Memes@mander.xyzOxygen
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    16 days ago

    The short version is that life needs something that’s at least a little unstable in order to extract chemical energy from things.

    The post is correct when viewed in a particular light, on a technicality, if you squint. By that same technicality iron rusting is also burning very slowly. They’re ignoring the rapidity which is implied by “burning”. But yes, oxygen is unstable, oxygen helps burn things, and oxygen is toxic if you get too much at once. Though you’d need to be breathing pure oxygen pressurized to about 1.4 atmospheres, or regular air pressurized to about 7 atmospheres, for that last one to happen. It’s a legitimate concern for deep SCUBA divers.

    But why does life need instability? Chemical instability is, in basic terms, just stored chemical energy, and that energy wants to be released. The more reactive something is the easier it is to get energy from reactions involving it. There’s a balancing act here where more reactive means easier energy, but also more dangerous. Oxygen is in a kind of sweet spot where it’s stable enough that it’s not generally going to explode or catch fire on its own, but can be coaxed into doing those things in controlled ways with other chemicals to extract energy when needed.