I totally missed the concept of having high-level Controller-Views when I first started playing around with React. Just understanding the concept is only half the battle too; you have to have the self-control to keep lower-level components immutable using props and pass in the 'state' via the higher-level controller-views. Has anyone had experience with Flex and the Cairngorm Framework (from back in the day)? I find Flux borrows heavily from its design.