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2018/6/5. WWDC 2018

I watched about WWDC 2018 news.
Swift Programming Language will be major one. This language will be used both of macOS & iOS.
This means the ratio of learning cost/reward will be lower. Or return from learning Swift is bigger. 
This is what I imagine. Learning Swift is more than other machine language.
Learning cost is low, and return is high.
I recommend learning Swift is good investment in 5-6 years, or more.
And in near future, programming is vital skill. Some people study about traditional subjects in coffee shops, but I think only 3 subjects is to study... Programming, accounting & foreign language, especially English or Chinese. I started studying from English, and then, programming. Recently, I want to start studying accounting(Not difficult one, but for small business.).

There are many subjects, and smart people try to take all. But focusing on programming, accounting and foreign language will be better.

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