One of the few irreversible things in life... decline of world languages

This post has nothing to do with investing so move along if that's what you are looking for :)

There are very few major things in the world that cannot be reversed. An example in my opinion is pollution. Unless we discover some super-high-end technology to reverse environmental damage, it is likely that pollution right now or any point in the future will be higher than a few thousand years ago.

Another irreversible trend is the decline of languages. I don't view the trend as neither good nor bad; it is what it is. Whenever I look at chart like the following one from The Economist, I'm always speechless. It feels weird. Not really sure what to say other than the fact that humans a few thousand or even a few hundread years from now will wonder how the world was when there were thousands of languages.

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