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   Paul Cantrell (inthehands@hachyderm.io)'s status on Tuesday, 01-Oct-2024 09:59:23 JST Paul Cantrell

   Distance per volume (mpg or km/L) is kind of a lousy way to reason about fuel economy; a better system is to take the reciprocal: gallons per mile, or liters per km.

   (Here's an accessible argument for why: https://www.popsci.com/technology/gallons-per-100-miles-best-fuel-economy-metric/)

   But volume / distance = length³ / length = length² = area. That means we can measure fuel economy using area.

   For example, my car gets about 0.08mm². That’s not a rate. It’s just an area (in the rough vicinity of the period at the end of this sentence).

   Huh?

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