Issue #9: Reversible vs. one-way doors -- The Compound Years

Some decisions you can walk back from in an afternoon, and some you cannot -- and we tend to treat them the same way.

01The experiment

Pivoted Pi-Squared from a math-learning app to a gaming model.

The math angle was not sticking with users. Switching the model was reversible -- I could have switched back inside a week if the numbers were worse. That call took Pi-Squared from a flat line to 20,052 installs, and the only real cost was admitting the first version was wrong.

02The lesson

Walking back through a door I thought was one-way is what taught me to tell them apart.

Reading Bezos’s shareholder letter is useful, but it does not stick until you have actually pivoted something and watched the world not end. The dataset is yours -- every reversible call you make teaches you the real shape of risk in your own work.

03The founder

Jeff Bezos split decisions into Type 1 and Type 2 in his 2015 shareholder letter.

Bezos argued that most decisions are Type 2 -- reversible, two-way doors -- and should be made fast by small groups. Type 1 decisions are one-way and deserve real care. The bug, he said, is when companies apply Type 1 process to Type 2 decisions and grind to a halt.

04The mindset

Speed up on the reversible ones; slow down on the irreversible ones.

The habit I am building is a one-line filter before any call: can I undo this inside a week? If yes, decide now and move. If no, sleep on it, write it down, and run it past two people whose judgement I actually trust before committing.

05The question

What reversible decision have you been treating like a one-way door?

Hit reply and tell me. I read every one.

Forward to one person who is overthinking something they can undo by Tuesday.

-- David