I disagree with this article (and I've spent 8 years learning Mandarin part-time). English is far more valuable in business and scientific contexts, and the cost of becoming proficient in Mandarin is considerable (1000s of hours before it's useful in a non-trivial way). And I expect things to remain that way within the next 100 years.

Mandarin + English is not a very distinctive skillset: you're competing with millions of native Chinese who also speak English, plus millions of Chinese diaspora who learn Mandarin as a second language from a young age either through their parents or in a Chinese school.

Also, "fun point" 1 in the article is wrong. Chinese is hard. The hardest parts (for me) are memorizing characters and understanding colloquial speech (colloquial speech is very informal and different from written Chinese). Remembering tones is also hard for me, and some people also have trouble pronouncing tones and consonants (but I got that part pretty easily).

As an aside, why do I learn Mandarin, then? A few reasons:

- I think it's intellectually stimulating.

- I have a personal goal of learning a foreign language and I think Mandarin is one of the best to learn.

- It allows you to travel and experience Taiwan and China in a way that you otherwise couldn't.

- I might live abroad in Taiwan or China some day.

- Maybe I'm completely wrong and it will actually be economically valuable to me in some significant way in the future. It has been valuable in some ways since my company partners with Taiwanese and Chinese companies and I've used the language in to help me navigate business trips and also (very) occasionally for technical communication. But I think I could have been almost equally successful without knowing any Chinese.