I'd argue that the Touch Bar implementation is fully baked but utterly useless. There's a ton of engineering and polish that went into that feature — from the

I'd argue that the Touch Bar implementation is fully baked but utterly useless. There's a ton of engineering and polish that went into that feature — from the way it can securely render the price of a purchase through Apple Pay to the way it communicates and transfers its frame buffer, to the UI components it can smoothly display. It's just a pity I never actually want to use it.