"IQ" is an average, so "the whole of humanity" should by definition be around 100 IQ at any given time, right? If everybody was half again as smart as they are

"IQ" is an average, so "the whole of humanity" should by definition be around 100 IQ at any given time, right? If everybody was half again as smart as they are now, the gleaming perfection of the Ada language would become undeniable and everyone would adopt it immediately. Seriously, why would "smarter people" not need tools as or more diverse than those in use now? You think that there's "one true language" of programming that is Universally Perfect and only our idiocy has prevented us from implementing it thus far?