History can mess up your investments, according to Morgan Housel of the Motley Fool. Using history as your only screen for investments is dangerous, and dangerous is expensive in the investment world. What starts as an honest attempt to objectively study the past quickly becomes a field day of confirming your existing beliefs. Psychologists call it Confirmation Bias, and we all suffer from it. Think stocks are expensive? History agrees. Think stocks are cheap? History agrees. Think tax cuts spur economic growth? History agrees. You can win any economic argument you want using a version of history, written somewhere. You just need to be the last person on the podium. Interesting insights on Mastering Money today. In the Q & A segment, IQ Wealth CFP® Murray Titterington, formerly with Morgan Stanley and Merrill Lynch, joins the A-Team to talk Social Security.