judging from my experience with a small re-frame webpage I'm deciding he is just full of shit 😛 Because it split business and view very convincingly to me.

if you can separate your business logic into pure functions, then it's easy to have react use those pure functions to drive the view

that being said, it can be difficult to figure out what's "business" logic and what's "view" logic, and React won't help you figure it out. it doesn't care.

I understand the response, but not to your suggestion. Functional doesn't mean you have to separate business from view.

I don't understand what it means to be "halfway nonexistent"

precisely, me neither. But I know that enforcing encapsulation of state in the UI as a separation of concerns leads to low quality UI code

Yea, the lines are too blurred. It's best to just not get too hung up on it.