2010 TEDSalon London:
“It may seem that big problems require big solutions, but ad man Rory Sutherland says many flashy, expensive fixes are just obscuring better, simpler answers. To illustrate, he uses behavioral economics and hilarious examples.”
To me this sounds a lot like what Buckminster Fuller called “Trimtab.” Here’s a video:
Ideas useful in many domains, it seems to me.