Re: Ask HN: What Technologies to Learn in 2020?

Learn how to really use a relational database, relational data modeling, and SQL. Not knowing of their capabilities may lead you to unnecessarily complicating your tech stack. You can go a really long way with just this domain of expertise. From there, do the same with whatever key-value store interests you (for me, it's Redis). Python isn't known for high performance but when a django web app uses a cache and relational database effectively, it can achieve a very acceptable peformance. Case in point: the Zulip chat platform: zulipchat.com.

Aside from the database domain, I really enjoy using Rust and recommend it as the next language for anyone to learn, but only after taking time for in-depth relational database training. :).

Dowwie, 4 hours ago