But of course there's a significant difference between growing up speaking such a language, as most speakers of those languages do, and having to learn it in later life...Hmm, so I guess we need a pre-1900 POD so that Sanskrit would be more viable as a language. After all, many of the Slavic languages (and even Latvian and Lithuanian) have grammars similar to (and just as complex as) Sanskrit yet still remain in use and are not viewed as unwieldy.