Um....yeah. About as sure as a Ouija board.
If we weren't facing an activist left-wing agenda in Congress and the White House, I might agree with the professor. The fact is that Obama and the Democratic-led Congress TALK recovery, while DOING things that we know will stall the economy. As long as bills such as Cap-n-Trade and Obamacare, bills that will radically alter our basic economy still move forward, there is no way to predict where we will be in the months and years to come. Modest hiring plans can turn to massive, nationwide pink sheets in days if something such as the proposed healthcare legislation passes.
We also cannot discount the insane debt we are amassing. Fortune magazine estimates tax rates of 60% for those above $250k if the Emperor keeps his campaign promise, but thinks that the Congress will HAVE to raise taxes on people who make less than that sum. They're predicting a 55% rise in taxes for EVERYONE.
If that happens, there goes your recovery into a double dip that will make '80-'82 look like a walk in the park.
A sure sign?