up until very recently, the only units that made it even remotely "universal" was US customary units. Or, as Arduino Vs Everyone on youtube says: "units that have gone to the moon."

Now, i speak larger measurements in metric if i think the person i am talking to understands or doesn't care; but short measurements i still use "quarter inch" or "teenth" or "thou" pronounced like "wow", from the beginning of "thousandth".

I know km, liters - i drink at least 3 liters of liquid a day, if not 4, but i drink it 1 quart beverage receptacle at a time, odd how that fits!

is it really so hard to have a ruler with both measurements? I have a ruler that lets you convert from font point to two other measurement units to inches, for page layout.

I'm american, from the '80s, and we never used metric day-to-day.

the US will be US customary units basically forever. because we're an absolutely massive geography, and there's hundreds of thousands, if not millions of mile markers, speed limit signs, "distance to" signs, speed warning signs, gas stations, etc.

So 2026 is the year where i finally say: Please, please, shut up about this. No one cares.