@exterm @flavorjones You're right, you said isolation was not "a primary focus". But my response is the same.

Isolation is what gets you to modularity, so if that's what you're after than isolation must be your goal. It's really that simple. And if you're not after modularity, then I don't know what you're doing.

You reduce cognitive load by reducing the things you need to think about. Only isolation does that. I reject the idea that there is a meaningful alternative.