Don't Fool Yourself

Richard Feynman gave a commencement address at Caltech in 1974 and put his method into one sentence. The first principle, he said, is that you must not fool yourself. And you are the easiest person to fool.

He was talking to physicists, but he could have been talking to founders. A founder is the one person with no boss above them to catch the lie. The pitch deck, the vanity metric.

There is no editor checking those for truth. The founder is the reviewer and gains the most from the lie.

Every founder runs on a story they haven't checked against reality. The ones who last run a small discipline against it.

The cost compounds in silence. A founder who believes their own retention number ships features the market never asked for. A founder who believes their own pitch stops listening to customers.

Each small lie is a brick in the wall between the founder and what's actually happening.

Rosalind Franklin wrote the discipline down, in a letter: science and everyday life can't and shouldn't be separated. She meant evidence has to touch the ordinary decisions, not just live in the lab.

A founder can borrow the rule. Treat what you believe as a hypothesis to test, not a story to protect. Write down what would prove you wrong.

If you can't think of a thing, that is the fooling, and it has already started.

Marie Curie pointed at a second place the lie hides. You can't hope to build a better world without improving the individuals, she wrote. The work is the people, not the narrative.

You can fool yourself about a roadmap, because a promise costs nothing to believe. A team is harder to fool yourself about. It ships or it doesn't.

The roadmap is the story. The people are the receipt.

Carl Sagan held the other end of the rope. Imagination will often carry us to worlds that never were, he wrote, but without it we go nowhere. The discipline keeps the dream honest.

You still take the leap, and you make it land on ground you tested.

The scientists got there first because their work had a built-in check: nature pushes back. A founder gets no such pushback. The market is patient, and it lets you fool yourself all the way to the end.

That's exactly why the discipline has to come from inside. The loop is simple, and it is old. Test what you believe, and let the evidence lead.

The founders who last are the ones who refused to fool themselves, and then did the work the truth demanded. The narrative is beside the point.