New ask Hacker News story: Staff+ engineers, how do you learn new technologies at a new company?

Staff+ engineers, how do you learn new technologies at a new company?
3 by vincentchau | 3 comments on Hacker News.
Let's say that you're a Ruby on Rails veteran and now you get a job at Google, where you need to learn Go. What's your approach to quickly learn new framework/programming languages?