Source
The Knowledge Project — Morgan Housel: Wealth is What You Have Minus What You Want (January 20, 2026) ·
at 1:43:28 ▸ ·
at 1:46:41 ▸
When this applies
when designing or evaluating any incentive/learning structure meant to build long-horizon skill or behavior
The takeaway
When teaching or practicing any long-horizon skill, make sure the practice structure's time horizon and feedback loop actually match the real horizon required for success, and be wary of early high-variance outcomes distorting future expectations.
Why it works
A weekly or monthly performance competition rewards speculative short-term behavior and miscalibrates what 'long-term' means, and early high-variance wins (e.g., 2021 meme-stock gains) imprint unrealistic base-rate expectations that are hard to unlearn later because early experiences leave lasting psychological anchors.
One level up
The structure of early practice/feedback shapes lifelong intuitions more than later corrective information does.
Where it stops holding
This stops working for genuinely short-horizon strategies/markets where rapid feedback is appropriate and realistic (not conflated with long-term equity investing).
Detail
rule: A realistic 'long term' for stock investing, to meaningfully put odds of a positive real return in your favor, is at minimum about 10 years, ideally 20-40.
threshold: Minimum ~10 years; many people's implicit definition of 'long-term' is a month or less
rationale: Roughly 10% of people are natural savers who need no advice, 10% are unhelpable compulsive gamblers, and the remaining 80% can be shaped by good information/structure — but weekly 'investing competitions' teach speculation, not investing, and can scar lifelong psychology (e.g., Jeremy Grantham's early bearish imprint, or 2021 meme-stock investors expecting to double money monthly).
In their words
Historically, when we talk about the stock market, a good definition of long term of like really putting the odds of success in your favor is probably 10 years.