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Cake day: September 29th, 2026
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DespairSquid@lemmy.dbzer0.comto
Technology@lemmy.world•AI needs $6tn in annual revenue to justify data centre boom, Bain says | The NationalEnglish
32·5 days agoWow. Ok have fun with that personality… eesh.
DespairSquid@lemmy.dbzer0.comto
Technology@lemmy.world•AI needs $6tn in annual revenue to justify data centre boom, Bain says | The NationalEnglish
71·5 days agoThats not… I feel like you weren’t alive yet when that transition happened.
Because CDs are objectively better in basically every way than VHS and cassette, especially for consumers. No more tapes stuck in the player, no more rewinding, no more randomly unspooled tapes, no more twisted ribbons, no more seeking static, no more heat warping, etc. plus cds take up less space overall, and you can easily use many-disc cd changers.
The market absolutely drove that transition, not manufacturers. VHS and cassette were still supported and produced for a LONG time after cds came about, because not everyone was willing to drop a ton of money to get their collection in a new format.
The same thing happens with rodents. They gave lady rodents a lemon smell (citruis isn’t pleasant for them) and it caused them to have a kink for lemon smell for like 3 generations. Crazy stuff.
As for an explanation, Epigenetics is where you want to look. Its a fairly new field, few dozen years old, and it studies methylation of DNA. Methylation (addition of a methyl group to the exposed end of DNA) or demethylation (removal of a methyl group) happens in response to experiences while alive, and changes how genes are expressed. Doesn’t change the DNA itself, but because the methyl groups are chemically bonded to the DNA some of them carry through the reproductive process. This means some of those changes are passed down. The epigenome isnt passed down completely, about half-2/3 of it is reset between generations, iirc, but what is passed down can cause stuff like this “inherited memory”.
The epigenome is really neat, and as far as we know, everything with DNA has one. In humans, for just one example tjat we know of, it can impact fat storage. If a person lives through starvation conditions, the bodies of their offspring will prefer to pack on weight because they think they are being born into famine. When researchers studied descendants of major famines (starting with those born during the famile), they found that those methylation points didn’t reset for 3-4 generations. Thats insane! Thats a hundred years! Its also why as identical twins age, they can start to look more and more different, and they -can- actually be DNA matched if you have the tools to look at the epigenome, because no two adults will have the same lived experiences.