There's also a few other things wrong with it in this context. Firstly, the assumption is that the "smarter" person has been focused on performance, rather tha

There's also a few other things wrong with it in this context. Firstly, the assumption is that the "smarter" person has been focused on performance, rather than for example stability or flexibility. And more specifically, on performance for my particular use case. Secondly, when I'm writing a native app, regardless of platform, I'm also using a set of OS libraries that have been written those "smarter" people. And thirdly, if I'm looking to do something where speed is likely to be an issue (e.g. game development) I've got OS- (and use case-) tuned libraries, such as Cocos, that will have also been written by smarter people.