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> What's the problem with something concrete like kg/sqcm

kg isn't a measure of force. And the world will be a nicer place once we retire the oddball prefixes of centi, deci, deka, and hecto.

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> And the world will be a nicer place once we retire the oddball prefixes of centi, deci, deka, and hecto.

Why? Is that just so we have fewer things to remember, or is there a more obvious benefit I'm missing?

Just to be more consistent with the rest of the prefixes, which are all (integer) powers of 1,000. And because engineering notation is a thing. And because we normally group digits by the thousands (e.g. 1,000,000). Curious if anyone has come across a mechanical drawing or electrical schematic with oddball units like cm, hN-m, or deciFarads, daOhms and the like (daPa, hH).

https://en.wikipedia.org/wiki/Engineering_notation

Fewer things to remember is important because humans are useless at that. Hardly anyone will have an intuition for how much pressure a kg/cm^2 is as well as a N/cm^2 and a N/mm^2 and a kg/mm^2 and a kg/m^2 and PSI and a kPa ...

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