THE WORLD OF DR. BAYESA WORK IN PROBABILITY · EST. 2026
EPISODE 005 · THE GARAGE

The Mechanic

A strong prior. A very tired Saab.. Dr. Bayes faces an inconvenient sample of breakdowns—and a mechanic who won't let him ignore it.

Strong priorsConfirmation biasThe Saab
THE COMICTap any panel to open it at full size
Episode 005 of the Dr. Bayes comic, “The Mechanic”: Dr. Bayes faces an inconvenient sample of breakdowns—and a mechanic who won't let him ignore it. The full dialogue is in the transcript below.
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A NOTE FOR CURIOUS MINDS

Behind the joke.

Dr. Bayes knows better than to dismiss repeated evidence merely because it threatens a cherished belief. But the Saab is his exception. The joke is about motivated reasoning: applying a stricter standard of proof to evidence we dislike than to evidence that flatters our existing opinions.

SPEECH BUBBLES, IN WORDS

The transcript.

For readers who prefer dialogue without zooming in.

Read the dialogue ↘

Mechanic: Your Saab has broken down four times this month. You need a new car.

Dr. Bayes: That's a very small sample.

Mechanic: It's the fourth month in a row!

Dr. Bayes: I have a strong prior.