If we understood, as we do not, the physical bases for intellectual structures, I have little doubt that we would find structures in the brain for social interactions, or language, or analysis of personality - a whole variety of systems developed on the basis of a specific biological endowment.
There isn't much doubt that like other animal societies, those of Homo sapiens involved plenty of cooperation, which might have been considerably enhanced, one would suppose, by the emergence of the remarkable instrument of language.
There is little doubt that a significant part of any serious solution will require advances of technology, but that can only be part of the solution. Other major changes are necessary.
English is a second language in most of the educated sectors of Europe and much of the world. But maybe in the future Chinese will be. But I doubt that national languages will disappear. In fact, to some extent they're becoming more diverse, like in Europe.
It's not in doubt that tobacco is far more lethal than hard drugs.
I doubt that national languages will disappear. In fact, to some extent they're becoming more diverse, like in Europe.