I would think this claim is self-evident > In the case of some large frameworks it'd be practically impossible to implement what they cover on your own. You si

I would think this claim is self-evident > In the case of some large frameworks it'd be practically impossible to implement what they cover on your own. You simply can't learn the underlying principles and then implement them all in code yourself. Not even DHH would claim to have been able to build the whole of Rails by himself.