John McWhorter, in the Atlantic, compares the complexity of several languages.
When a language seems especially telegraphic, usually another factor has come into play: Enough adults learned it at a certain stage in its history that, given the difficulty of learning a new language after childhood, it became a kind of stripped-down â€œschoolroomâ€ version of itself. Because all languages, are, to some extent, busier than they need to be, this streamlining leaves the language thoroughly complex and nuanced, just lighter on the bric-a-brac that so many languages pant under. Even today, Indonesian is a first language to only one in four of its speakers; the language has been used for many centuries as a lingua franca in a vast region, imposed on speakers of several hundred languages. This means that while other languages can be like overgrown lawns, Indonesianâ€™s grammar has been regularly mowed, such that especially the colloquial forms are tidier. Lots of adult learning over long periods of time is also why, for example, the colloquial forms of Arabic like Egyptian and Moroccan are somewhat less elaborated than Modern Standard Arabicâ€”they were imposed on new people as Islam spread after the seventh century.
In contrast, one cannot help suspecting that not too many adults have been tackling the likes of sÇqâ€™ayÇÆ›aaÉ£wÇaÉ£hasÌ. Kabardian has been left to its own devices, and my, has it hoarded a lot of them. This is, as languages go, normal, even if Kabardian is rather extreme. By contrast, only a few languages have been taken up as vehicles of empire and imposed on millions of unsuspecting and underqualified adults. Long-dominant Mandarin, then, is less â€œbusyâ€ than Cantonese and Taiwanese, which have been imposed on fewer people. English came out the way it did because Vikings, who in the first millennium forged something of an empire of their own in northern and western Europe, imposed themselves on the Old English of the people they invaded and, as it were, mowed it. German, meanwhile, stayed â€œnormal.â€