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Cake day: July 11th, 2023

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  • Those aren’t tubes, they’re whole tubular tires, essentially an integrated tube and tire in one unit that is glued to the rim. Changing a flat first required peeling the old one off before the new tire could be stretched (they fit tight!) onto the rim.

    Tubulars are still used regularly by at least one world tour team (French, naturally), but these days a flat is fixed by swapping the wheel or even the whole bike for a spare carried by the team car. That wasn’t allowed in the early days.


  • Interesting! From his post,

    Mikhail advised me to use balanced trees instead of extensible hashing

    And

    I never told Mikhail that Oracle had tried implementing a filesystem using balanced trees, and its performance was terrible leading to most insiders in the industry concluding that balanced trees performed poorly for filesystem File size patterns.

    Of course, that filesystem exists today as btrfs.