All units of measure are abstract.

I like metric because it's structured around an abstract amount. Even something like Celsius is pretty abstract, because the freezing and boiling point of water changes depending on the atmospheric pressure. The measure of a second? Why is a second, 1 second long? Why is it 1/60th of 1/60th of 1/24th of a day? There's other stuff based on seconds too, like Hertz, which is literally "cycles per second"

I like to think about how abstract these things are, because if we were to ever try to communicate with a truly alien race, we couldn't really use numbers, because their base numbering system would be different than ours, their symbols for numbers would be different, their entire understanding of math and how to calculate stuff could be wildly different, possibly because they understand things we do not. We couldn't even say to them to communicate on a specific frequency of EM, because that frequency is based on Hertz, which is based on seconds, which is based on ????? IDFK (neither would they). We base everything we know on the world around us, and that's entirely unique to earth. We make so many assumptions about how things are because we've only ever experienced life on this planet.

The only thing that kind of makes sense is how many days of the year there are, because it's based on solid science about our solar system. It's still unique to earth, but at least it makes sense on a larger scale. Everything else? Who the hell knows. Why is a meter as long as it is? Who defined this? Why? What abstract Earth-based thing was this based on that other societies of individuals would have no point of reference to relate to?

It's wild we've made it this far, to be honest.

Anyways, I kind of got sidetracked... I guess all I'm really trying to say is that metric makes more sense than whatever the USA is doing. Even if it's just as abstract in its conception.