[pothibo]

>> On a separate note, I feel like this article series might better be titled "The Missing Parts of Our Knowledge of Basic Rails Features".

Agreed on so many level. I see so many new gems that does the exact same thing as what rails do by default. I've spent some times browsing Rails source. It took me a while and as a side effect, the number of gems I am using now is a fraction of what I used when I started.

You can't build libraries and abstraction on top of Rails if you don't understand rails to begin with.