It is all about layering up your cumulative knowledge. Not just in seeing how to do new things, but in seeing how not to do them too. It is humbling to be a master of one language, to have another language kick your butt because the syntax is different, idioms are different, etc.
Same goes beyond languages. Play with frameworks. Compare how they do MVC/IoC/factories/whatever. Play around. Learn learn learn. You will be a better dev/engineer/scientist/everything.
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You are spot on. I preach this all the time.
It is all about layering up your cumulative knowledge. Not just in seeing how to do new things, but in seeing how not to do them too. It is humbling to be a master of one language, to have another language kick your butt because the syntax is different, idioms are different, etc.
Same goes beyond languages. Play with frameworks. Compare how they do MVC/IoC/factories/whatever. Play around. Learn learn learn. You will be a better dev/engineer/scientist/everything.