(CNBC) Stocks may see a super-sized comeback deep into next year. The Leuthold Group’s Jim Paulsen sees the depression-like collapse setting the stage for a wartime-type boom. “It forced companies to just knee-jerk react — to cut everything they could to try to survive this pandemic,” the firm’s chief investment strategist told CNBC’s “Trading Nation” on Wednesday. “What that has done is put them in a unique position with incredible profit leverage because they whittled down costs so low and increased efficiencies.”