sentences:  Zarlenga argues that this would mean money would be issued by government interest free and spent into circulation to promote the general welfare, and that substantial expenditures on infrastructure, including human infrastructure (education and health care) would become the predominant method of putting new money into circulation.Research results are published in Zarlenga's book, "The Lost Science of Money".The book asserts that money did not emerge from barter between individuals, but rather through trade between tribes and as part of religious worship and sacrifice.