"Men more frequently require to be reminded than informed." (The Rambler, No. 2, 24 March 1750)
If The Idler were to express his view of the investment world and of the only consonant way to operate within it, he would abide by these Ten Foundational Principles. In his own voice, then:
Foundational Principles & Epistemology
1. Markets are not efficient.
Prices reflect a contested aggregation of beliefs, constraints, and incentives — imprecise and unstable. Inefficiencies persist for reasons structural (mandates, career risk, redemption windows), behavioral (recency bias, narrative overreaction), and informational (asymmetric attention, complexity discounts).
2. Risk is the probability of permanent loss of capital, not volatility.
Volatility is often the cost of earning returns and, at times, the source of opportunity. The danger is permanent impairment of capital.
3. The first rule is to stay in the game.
Compounding requires survival. No opportunity, however attractive, justifies exposure to ruin. Position sizing, leverage, and concentration are governed first by survival, second by return.
4. Selection is by elimination.
Selection proceeds by eliminating fragility rather than identifying greatness. The "best" businesses exist only after the fact and only conditional on the path the world actually took. What can be observed in the present are signs of strength and fragility.
5. Asymmetry is the most durable source of long-term advantage.
Long-term success depends less on accuracy than on consequences. The advantage is not being right more often than wrong; it is being right when the payoff is large and wrong when the cost is small.
6. Patience is structural edge.
Most market participants are forced to act on horizons that don't match the opportunities they face. Their structure imposes impatience. Capital that can wait is, by that fact alone, advantaged.
7. Process over outcome.
A good decision that loses money is still a good decision. A bad decision that makes money is still a bad decision. Single-period results are noise; the only thing I control is the quality of decisions, repeated over time.
8. Do not forecast. Structure positions to benefit from a range of futures.
The question is never "what will happen?" but "what is the distribution of outcomes, what is priced, and where is the asymmetry?"
9. Falsifiability: every thesis must specify what would invalidate it.
Before entry, I must write down what would prove me wrong. Otherwise, every outcome can be rationalized after the fact.
10.Uncertainty exceeds measurement.
There is advantage in recognizing the limits of one's knowledge. Decisions are made under uncertainty, not clarity. Recognizing this affects sizing, structure, and timing.