I’m personally of the opinion that one should learn new languages, so that even if you don’t put them into production, you’re exposed to the ideas and approache

I’m personally of the opinion that one should learn new languages, so that even if you don’t put them into production, you’re exposed to the ideas and approaches they bring-which might be foreign to your current language of choice-and this can give you new ideas about how to best tackle problems in your day-to-day. I’ll probably never convince my .Net-wielding team members to write a web API in Haskell, and that’s ok, and I’m not about to rewrite my data pipelines in it (even though that might be fun), but the ideas about purity/mutation, cleanly-separating IO, composition, etc have benefitted my teammates and I immensely with the code at work though.