An apparent disagreement between two of the sharpest minds in philanthropy is just too tempting to resist. Herewith, an unsolicited response to Matthew Bishop (co-author of Philanthrocapitalism and The Road From Ruin, and NY Bureau Chief of The Economist) and Lucy Bernholz (founding President of Blueprint Research & Design and blogger extraordinaire at Philanthropy 2173) on the subjects of predicting trends in philanthropy and the relationship of private giving to public policy.