Most devs learn what the need to do their jobs. And you can be a very effective Ruby developer without needing to know much of this information. Just like you

Most devs learn what the need to do their jobs. And you can be a very effective Ruby developer without needing to know much of this information. Just like you can be a very effective C or C++ developer without knowing anything about css (which in my opinion is far more difficult to understand than when and how stack vs heap allocations are made)