Today we are talking about the cognitive prison of the flashing red and green numbers on your screen, and why you must actively choose to delete your own financial memory if you want to survive.
The Wisdom Bites:
"Yesterday's got nothin' for me / Old pictures that I'll always see / I ain't got time to reminisce old novelties" – Guns N' Roses, "Yesterdays"
"Let them wash away / All those yesterdays" – Pearl Jam, "All Those Yesterdays"
The Deeper Connection: In the racetrack betting world, there is a serious offense known as "past-posting"—trying to get a bet down after the race is over and the horses are already past the post. As ridiculous as that sounds, modern investors do this to themselves every single day. When you obsessively check your portfolio, agonizing over a stock that dropped from $80 to $60, or lamenting a trade you missed yesterday, you are emotionally past-posting your own life. You are living in a reality that no longer exists.
Robert Pirsig nailed the profound danger of this in Zen and the Art of Motorcycle Maintenance when he wrote: "The past exists only in our memories, the future only in our plans. The present is our only reality". A stock quote from yesterday is nothing but a ghost. It tells you absolutely nothing about the cash flows that business will generate tomorrow. Yet, investors allow these daily, historical blips to anchor their psyches.
We suffer from a delusion regarding how time and probability actually work. Santa-Fe Institute scientist Ole Peters points out that when we evaluate an investment, we build mental "decision trees" imagining all the possible futures and branches. We convince ourselves we have to monitor the ticker daily to handicap the odds of each branch. But the reality of time is that you do not get to visit all those branches; you only live down one of them.
When you sit there refreshing your screen, soaking up the daily deluge of financial data, you aren't gaining an edge. You are poisoning your own judgment. The more frequently you look at the data, the more noise you get, and the more
"iatrogenics" (harm caused by the healer) you will inflict on your own portfolio.
The Financial Takeaway: Stop past-posting your portfolio. Erase your mental anchors of what a stock used to trade at, because those yesterdays have nothing for you. True financial competency requires you to wash away the noise of past price action and focus strictly on the present reality of the business you own. If you want to survive, you must cultivate the discipline to look at the screen less, rationing your supply of information so your mind has the quiet space necessary to actually think.