[derefr]

The commandments that generalize are the exception, not the rule.

You know there are mitzvot about which positions of the priesthood should or should not be allowed to eat specific varieties of grapes (that only grew in Canaan) during specific growing seasons, right?

Those are pretty concrete rules, that don't really generalize. The sort of thing you'd expect to see matched by modern equivalents. And yet, these are believed to be literal divine law, just as much as "thou shalt build an ark" etc. is.

Also, there are separate mitzvot for kosher-ness rules for basically each kind of animal, starting with general classes, but then getting increasingly specific and obscure/unlikely-to-be-eaten-by-humans. (Almost exactly as if a series of people were actively pestering a High Priest with trivia questions like "but when is it ritually-impure to eat flying insects, though?", where they then felt the need to make a ruling.)

If you're curious: https://en.wikipedia.org/wiki/613_commandments#Canonical_ord...

[im3w1l]

It's a stretch, but maybe you could extract from the rule about eating grapes a general principle, perhaps even one consistent with Japanese tea ceremonies.