BACK-OF-THE-NAPKIN MATH: Brooklyn-based entrepreneur, George London, concludes that "it literally costs the government $0 to spend up to $6,500 extra per pupil per year on gifted education" in this quick-math thought experiment on public investment in talented and gifted education. The entire exercise stems from London's dismay at the lack of investment in talented and gifted minority students described in this NYTimes piece. London concedes that the argument is oversimplified but lays out his assumptions well. Now if only we could get around to the "well-targeted education program[s]" he assumes will lead to a 5% increase in average annual income!