Gary KellerIn a meeting room the size of two football fields, Keller Williams co-founder Gary Keller walked a crowd of 15,000 eager KW agents through an economics and housing market tutorial, starting with interest rates and ending with technology trends.He promised not to “geek out over the numbers” in his vision speech, but he did explain dozens of arcane economic and housing market trends in 95 slides. Economic outlook If you are going to be the ”housing economist of your market,” listen up, preached Keller.He said the government does not exactly know how to raise rates, but low rates are helping affordability in most U.S. markets.More sanguine about the U.S. economy, Keller says growth is “anemic” and debt is still tight, hurting gross domestic pr...