In 1989, in an article in Forbes, Bailey wrote a "...sneering attack ..." on Jay Forrester, the father of system dynamics. In the article he described the book, The Limits to Growth (LTG) as "as wrong-headed as it is possible to be." Bailey said that, "Limits to Growth predicted that at 1972 rates of growth the world would run out of gold by 1981, mercury by 1985, tin by 1987, zinc by 1990, petroleum by 1992, copper, lead and natural gas by 1993." According to physical chemist and energy expert, Ugo Bardi, "...Bailey's accusations are just plain wrong." In 1993 Bailey repeated his accusations in his book, Ecoscam. In it, he claimed that none of the projections of the 1972 LTG study turned out to be correct.