Was chatting with friends about coax cables earlier and how they’re better shielded against noise than twisted pair, but with power supplies it doesn’t matter because it’s high voltage and current and apparently it would take like a nuclear explosion to mess with a 20v supply.
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Got ne thinking about a general principle… When a potential difference is high the associated flux is strong and steady, with high SNR. When it is small, the flux is weak and and wiggly and low SNR. Very susceptible to noise. That’s a nice metaphor.
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Extreme example… the US prevailed in WW1 and 2, as well as the Union in the civil war. The wars were won by increasing the potential energy. With evenly matched sides, it’s FUD vs FUD and even being very clever only buys you transient SNR advantage and tactical gains.
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So in general, in any conflict that’s just pure FUD on both sides, like Internet of beefs, the trick is to pick a side and simply go to work on increasing the potential rather than obsessing over the play by play.
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