that's not what they were arguing tho: "You can make buttons look like Windows buttons on Windows and OSX buttons on OSX but that's only superficially cross-pla

that's not what they were arguing tho: "You can make buttons look like Windows buttons on Windows and OSX buttons on OSX but that's only superficially cross-platform." platform design choices are much more than the look of a button. it's choice and arrangement of ui elements, navigation systems, metaphors, ... if you just see it as "button on windows" vs. "button on macos" it's not that obvious, but think about how you'd design an email client on windows vs. command line vs. mobile phone vs. smart watch. a simple "button" might be roughly the same on every platform, but the overall design would be quite different.