In one sentence: A straight rerun of 337: the S step asks you to invert the story you built in R-U-L-E, using four checks, and Phil and Danielle disagree on how certain you can be.
Key ideas
- What's new. Nothing. The audio is the 2021 conversation, with no fresh intro, so the full set of ideas is in 337. The show notes add a link to the "Four Ms for Successful Investing" guide. [00:00–38:00]
- The four checks, in brief. (1) An inversion for every key reason to own the company, (2) know every reason not to buy it better than the short sellers do, (3) a solid rebuttal to each inversion, (4) the short sellers are wrong. [11:00–25:00]
- Why invert at all. After R-U-L-E you hold a persuasive story and want to buy; inversion is the step that attacks the confirmation bias that story created. [09:00–10:30]
- Chipotle versus GameStop. Chipotle's "broken moat" bear case after E. coli was wrong because other restaurants had recovered from the same problem. GameStop's bear case (digital downloads erode its moat) was strong and the price couldn't be defended. [15:00–28:00]
- Certainty like driving to work. Phil wants the level of certainty you have getting in the car: high, not 100%, and not paralysed by one-in-a-million events. Danielle worries that imagining many bad outcomes makes certainty impossible. They leave it open. [28:00–37:00]
How it maps to RuleOne
See 337. The real link is the same: short interest and risk-factor text on the stock pages feed check 2, and the screen's moat and valuation checks should knock out a GameStop-style name before you reach inversion.
Buffett, Munger and Graham links
See 337. "Invert, always invert" is Munger's habit, which he credits to the mathematician Jacobi.
Words to know
- Inversion: stating the opposite of each reason you like a company, then testing it.
- Short seller: someone who profits when a stock falls, so their reports show the bear case.
Try this
Open /stocks/, pick one company and write its top three reasons to own it. Invert each in one sentence and write a one-line rebuttal. If any rebuttal is "hopefully", mark it as unanswered.
Check yourself
- What is new in this rerun?
Answer
Nothing in the conversation; it repeats episode 337. - Why did the Chipotle bear case fail in Phil's telling?
Answer
Other restaurants had overcome E. coli outbreaks, so the brand and moat were not broken.
Short quotes
"Invert, always invert." (Phil quoting Munger, ~10:30, auto-transcribed)