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Cake day: June 17th, 2023

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  • I googled Pyhäsalmi Mine gravitricity "2 MW" and EVERY article covering this has also cited 2 MW.

    Now, under Occam’s Razor, what’s more likely:

    1. Absolutely none of the article writers have any clue what the difference between a MW and a MWh is because none of them remember any physics
    2. Some of them could suspect that it’s wrong, but an authoritative source of the claim wrote/said 2 MW capacity when they meant “2 MW peak generation” or “2 MWh storage” (I’d presume Gravitricity, but I’m struggling to find such a source, myself)
    3. One writer miswrote/misquoted as per 2, and everyone is mindlessly recycling that original article’s contents with no attribution or care.

    I don’t know which one it is. But I’d generally lean against 1.






  • Depending on whether this code is in a hotpath (and considering how “elementary” it is, I figure that’s a possibility), this could very well be a significant speed improvement.

    Though I’d say that only excuses it if it’s truly an elementary function (and not one line as part of a larger function), as otherwise it’s unreadable garbage. But on its own it:

    • has a clear purpose
    • (presumably) isn’t reimplementing functionality
    • is easily tested
    • can be modified with no side effects (besides breaking your calendar, but that’s beside the point)