Brent is a professional who worked in Japan for several years. I imagine that there was some culture shock in that experience, first when he arrived there from North America, bringing his North American ideas with him, and then when he returned here, bringing with him some Japanese thoughts and ideas. I don't think it's ever easy to straddle two cultures, but I also think it's a tremendous opportunity in both the personal and professional sense. Some of us will likely never have that experience ourselves, and so we must live vicariously through people like Brent, and the ideas he shares.
Brent's presentation is entitled "Return on Ideas", or ROI for short. Of course there are business and technological implications for this concept but I think there are significant strides to be made in a personal sense as well. The ability to not only conceive of an idea but implement it is a skill, and one that should be nurtured at every turn - because it can not only shift your thought, but change your life.