Just look at foreign competitors of Amazon, Google, Facebook etc. Even Russia like country have major tech companies while being poorer than western European countries.
This is BS. There will always be a loss of brain power to the lingua franca nation(s), regardless what that language happens to be. The research opportunities will (almost?) always be better.
That said, many people stay in China or return to China because they like it there, even if they speak English at a high level and have the option to stay in an English-speaking country. This has been true in my circle of friends and professional acquaintances since the 90s.
It might be the case that China is large enough to create its own large opportunities, so emigrating from China to an English-speaking country may not be particularly compelling. That said, I think itβs an apple-and-oranges comparison β the opportunities largely seem to be simply different from where I sit.
Klashnikov (very indirectly)?
Obviously we already have English, nearly universally spoken as a second or third language in the EU. So I assume you mean English, or some other language as the first language.
Which I think means all other languages would after a few generations become nearly extinct. Like Latin these days.
But despite how much I wish we had more innovation, I don't think losing all languages is worth it.