He calculates $1 trillion could pave the entire U.S. interstate highway system with gold — 23.5-karat gold leaf. It could buy every person on the planet an iPod. It could give every high school student in the United States a free college education. It could pay off every American's credit card. It could buy a Buick for every senior citizen still driving in the United States.
"As I started exploring, I was really taken aback by some of the things that can be done, both the absurd and the practical," Simpson said.
"At one point we couldn't find anybody who actually stuck with it long enough to spend $1 trillion," Simpson said. "It will wear you out."