It's very relevant for some types of programs. For web development, unless you're building the next Twitter, not so important... ...now if you're building a ch

It's very relevant for some types of programs. For web development, unless you're building the next Twitter, not so important... ...now if you're building a chess engine, that's a different story. (I just take chess as an example as it's my latest hobby. It's the first and only project where I found it necessary to switch to C because of performance considerations (switched from C#).)