He's got a point. Why? Because you are mastering the language core library, the ecosystem, and the community/idioms.

My only correction? Learn #Clojure first. It will provides a mighty environment for learning all those others with true REPL and best practices.
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RT @VittoStack
Pick a programming language: JavaScript, Python, Solidity.

Learn it.

Grind every single day for 1 year.

You won't believe how much you'll be able to chang…
https://twitter.com/VittoStack/status/1442009448562585603