frequency can be used to measure things that really feel like they should use different units.
"how often should my OS check the state of the keyboard"
"middle C"
this is technically a coherent answer
@astrid @lily ok but bloody web designers actually do this shit
they say shit like "our website is designed around a minor third interval" to mean that headers are 20% bigger than body text and just please shut the hell up, no, first of all that's a preposterous thing to do and second of all you haven't defined if you mean an just intonation minor third or an equal temprement minor third because if you've designed the whole thing around the fourth root of two then your devs are going to at best ignore it and at worst murder you
@astrid @lily it really isn't. Not least because they'll never get to the ×2 interval because their minor third isn't ⁴√2, it's 1.2, so stacking four of them will give you ×2.0736. And one of their favourite intervals is ϕ — the whole point of musical intervals is to be (or approximate) neat, simple ratios and the whole point of ϕ is to be as far away from any of those as it can. It's arguably the most violent possible discord you can produce with two notes. It's not just a pointless analogy, it's actually *fighting* them.