I've worked on a handful of large to very-large Rails apps, and I find that after a certain level of size, you're dealing with a Ruby code base that happens to

I've worked on a handful of large to very-large Rails apps, and I find that after a certain level of size, you're dealing with a Ruby code base that happens to have Rails as the way it is presented. Rails' implicit functions are either obvious because you use them often, or just not relevant, since you're deep in plain Ruby objects implementing your business logic.