Sorry bud, you’re straight up wrong. Aerospace and defense in the US very much still uses the inch-pound-second system of units.

I’m not a concrete guy, but I know that metals and composites have material properties certified for use in civil and commercial aviation are given in psi in MMPDS and CMH-17. I would be willing to bet that concrete specifications in the US are no different.

I could keep going. Our bolts are specified in ultimate tensile strength by psi. Structural steel standards use minimum yield strengths in psi. There is literally a type of steel called A36 because its minimum required yield strength is 36,000 psi.

We should be paying for the trucks to use the roads when we buy products transported on the roads. Just like how we pay for the ships, ports, trains, and railroads used to transport other goods. The cost of transport should be part of the total product cost. Trucks should be paying road tax in proportion to the damage they do to the roads, and those costs should be passed to their customers, then to us. This is how it works with most other forms of transport.

By moving the cost of the roads used by trucks to “everyone”, it makes trucking artificially cheaper and turns the cost of roads into an externality. If shippers had to pay those costs directly, I bet there would be many more goods shipped in more efficient ways.