When I purchased Harman’s OOO Intro, I also got his The Quadruple Object – and I’m glad for it now. I find myself agreeing at a distance with Harman and came to realize that he hasn’t made clear what he means by either “real object” or “direct” (as in direct knowledge or direct contact between real objects with real/sensual objects). I’m hoping that switching to QO will allow me to fairly weigh out Harman’s position. There is much to like but, I fear, he has traveled a long road after taking an early wrong turn. He’ll get close to his destination, but not quite. Keeping my fingers crossed that I will agree with him more, but I’m clearly in the New Realists camp (closer to Ferraris).