This memo discusses current market conditions and risks of overconfidence among investors. It notes that many elements that fuel bull markets and bubbles are present today, including a long period of positive performance, abundant capital, and a willingness to suspend disbelief. However, prospective returns are low while asset prices and risk-taking are high. The memo analyzes valuations in US equities and record-low readings on the VIX index as signs of complacency. While early warnings may prove premature, the author believes it is better to acknowledge risks too soon than too late.