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Joined 2 years ago
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Cake day: July 3rd, 2023

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  • I was reading recently about how Nvidia gpu familes (i.e. the RTX 40xx series) all use the same architecture, but are separated by the number of defects on the board (as all nanofab-made electronics have a certain amount of defects). They are placed into different ‘bins’ that have certain ranges of defective components, but the functionality as a gpu is still fine. I imagine that other companies do this too, and with other electronics besides gpus. Also as mentioned in another comment, ‘2nm’ is a marketing term and does not indicate the actual size of the transistors. My point being: this may not result in larger supply of currently available electronics that use different architectures (4nm, 5nm process, etc). It is more likely to be a move to prepare facilities for next-gen electronics. I don’t know about specific companies intentions to move to ‘2nm’ processes for their products or how easy that actually is, though, so it would be a case by case check.



  • “I see AI as a positive because it undermines the monopoly on intellectual property of capitalists”

    I would contest that it does the exact opposite. Massive companies have been given free reign to legally steal (see Meta’s plagiarism/piracy court docs) from the entire internet. They then roll out the ai model, that they own, which can recreate things (art, writing, technical docs, etc) that are amalgamations of all the stolen work. They then sell subscriptions for people to use their ai, funneling people away from paying real artists.








  • The rest of the quote in the article: When Inskeep pressed Buttigieg on whether he believes a parent who has complained about a trans athlete competing in girls’ school sports “has a case,” he agreed. “Sure,” he said. “And that’s why I think these decisions should be in the hands of sports leagues and school boards and not politicians… in Washington, trying to use this as a political pawn.”

    Not a great answer. I wonder how he would have answered if the question was rephrased from a trans kids point of view, i.e. if a trans kid was barred from playing high school sports and the parent complains, do they “have a case”?





  • The sound is caused by ‘gradient coils’ that are being switched on and off at kHz frequency, which is in the audible range for humans. The sound is caused by those coils vibrating due to the interaction of the magnetic field with the electric current in the coils: they’re non magnetic but they still feel the ‘Lorentz force’. As far as calibration, there is a pre-scan step (which is one reason why MRIs can take awhile) used to optimize the RF settings to each patient. Patients come in many shapes and sizes so the settings have to be tuned to get a good image every time. I’m actually not sure of how often they need to be serviced, but it seems like the manufacturers are here checking on the machines pretty often!