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Joined 1 year ago
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Cake day: July 20th, 2023

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  • My wife worked for a company that was heavily reliant on generating leads from ads. They had lots of real time monitoring of conversion rates to make sure they were actually making more money than they were spending on the ads. They would have to turn ad channels off all the time because the return on ad spend went negative.

    So my conclusion is that ads can be somewhat effective for companies, but if they don’t actively monitor and control the performance of their ads, they’re probably just burning money. A lot of companies seem to advertise because they think that’s the only way to grow.











  • No, never. Current charging rates already get close to thermal constraints. Hitting those charging rates either requires accepting much lower power density or using way more metal per cell. This research might inform design changes to improve charging rates, but we’ll never see high capacity batteries charging in a minute.

    The researchers know this and only mention wearables and iot devices applications. The article author erroneously makes the leap to high energy density devices.

    If you don’t care about energy density at all, ceramic capacitors can already charge and discharge in microseconds.