Open this photo in gallery: Traders work on the floor of the New York Stock Exchange (NYSE) on Aug. 2 in New York City. The Dow fell over 300 points in trading following news Fitch downgraded the United States economy to AA+ from AAA late on Tuesday spooking investors and markets.Spencer Platt/Getty Images Mark Wiseman is chair of Alberta Investment Management Corp.’s board of directors. The world is undergoing a paradigm shift, both politically and economically. This is the first in a four-part series that examines a series of changes, including the energy transition opportunity, evolving dynamics with emerging markets,…