I was once asked, at a journalism conference, how I defined my job. I said: My job is to write the exact same thing between 50 and 100 times a year in such a way that neither my editors nor my readers will ever think I am repeating myself.
That’s because good advice rarely changes, while markets change constantly. The temptation to pander is almost irresistible. And while people need good advice, what they want is advice that sounds good.
From financial history and from my own experience, I long ago concluded that regression to the mean is the most powerful law in financial physics: Periods of above-average performance are inevitably followed by below-average returns, and bad times inevitably set the stage for surprisingly good performance.
But humans perceive reality in short bursts and streaks, making a long-term perspective almost impossible to sustain – and making most people prone to believing that every blip is the beginning of a durable opportunity.
My role, therefore, is to bet on regression to the mean even as most investors, and financial journalists, are betting against it. I try to talk readers out of chasing whatever is hot and, instead, to think about investing in what is not hot. Instead of pandering to investors’ own worst tendencies, I try to push back. My role is also to remind them constantly that knowing what not to do is much more important than what to do. Approximately 99% of the time, the single most important thing investors should do is absolutely nothing.
“No individual can assist or save the age. He can only express that it is lost.”
Without a moment’s hesitation, my dad retorted: “He’s right. But that’s exactly why you must try to assist and save the age.”