One example was being able to write native gems so that I integrate ruby directly with other C based services. Writing ruby code that directly interacts with

One example was being able to write native gems so that I integrate ruby directly with other C based services. Writing ruby code that directly interacts with mail servers, databases in a thread safe manor was quite useful. Like learning assembly, sometimes it’s not directly useful, but it does make you write better code; since you understand more of what’s under the hood.