Not very salty about this. This is just an Internet comment.
The intuitiveness of the imperial units actually don't demand much thinking from my American pea brain: an inch is about the width of my thumb, a pound is about the weight of how much meat/grain I can fit in my hands, a mile is about a thousand paces - it's actually quite simple and intuitive, which is perfect for a dumb stupid American like me.
I can't imagine doing something like woodworking without my brainlet system. Inches are a nice "bite-size" unit that fractionates quite nicely for cutting wood. They don't make me think too much. In metric, my thumb would be about 2.53 centimeters, the kerf of my saw is 1/8 an inch, and that's like 253/800cm as a fraction - yikes! An inch is a good whole number to start working from.
And then like - what's a centimeter even? It's one hundredth of one ten-millionth of the distance between the North Pole and the Equator passing through Paris. Woah - get me outta here! That's just too much numerology for me. And my brain can't relate to or conceptualize that. Again, because I'm just so stupid, and American. I have to stick to the simple stuff: thumb -> inch, pound -> fits in my hands, mile -> thousand paces, gallon -> 10 pounds of water.
About the thickness of your pinkie.
A kilo is about 1/2 a lb so it's not really wildly different.
> pound -> fits in my hands
> gallon -> 10 pounds of water.
How do you do 10 handfuls of water?
Not like that arrogant metric, for which he can find no useful representation...for some reason
A reason that is clearly about the utility of metric itself rather than one's constant use of imperial.
People living in metric countries have these sorts of “intuitive” relationships figured out. If you ever go to Europe, you will not see people anxiously furrowing their brows over their calculators to figure out how much things weigh or how far it is to the end of the block.
And, of course, there’s an XKCD for that: https://xkcd.com/526/
Everything was easy to do in your head:
5cm + 15cm = 20cm
0.5kg + 0.15kg = 0.65kg
2900mm / 2 = 1450mm.
Now I'm forced to do mental gymnastics like:
5/8" + 7/16" = ???
2'9 1/4" + 14" = ???
11'4"1/4 / 2 = ???
1lb9oz / 2 = ???
It's not impossible, but it takes me a lot more time to think through these things, and often they are impossible to even punch into a calculator. Adding fractions of an inch in my head was not something I learned in school (honestly, my experience since moving to the US is that most adult Americans also struggle to add fractions of an inch).
It's just not that big a deal in my experience. And if I want to use millimeters, every ruler and tape measure has those too. For all the bitching about the US not using metric, we in fact use it for many things. But it's customary to use imperial for discussion, and I don't get why that hurts people's feelings. I don't care about the UK weighing people in stones...
Even outside of the legacy imperial unit systems, there will always be units not nicely expressed in metric units that are handy nevertheless and good to know and use. Like electron-volts.
Metric is more clean. Example: you have a cube of 1 meter, filled halfway with water. You can calculate the volume of water as being 1 * 1 * 0.5 cubic meter. 1 cubic meter is 1000 liter (ho ho, the magic already manifests), so 0.5 cubic meter is 500 liter. I even know the approximate weight is 500kg, as 1 liter of water ≈ 1 kilo.
Doing this in cubic yards/feet + fluidic ounce + pounds is not even in the same universe in terms of elegance or ease-of-use. Swapping the fluidic ounce to liter does not solve that and probably introduces whackier ratios.
That does not mean you are a bad person for using imperial, but stating that "its easy to convert" isn't wholly fair either.
Washington: “Nothing”
* metric ton; 1000kg
* short ton; 907kg
* long ton; 1016kg
not to mention its use as a measure of volume and power.
Confused the hell out of me when I went from nice clean metric units in school to a structural engineering practice still using Us standard units.