Sounds like the author is describing techniques to avoid Kahnemann & Tversky's anchoring effect. Avoiding one's own cognitive biases is important in debugging t

Sounds like the author is describing techniques to avoid Kahnemann & Tversky's anchoring effect. Avoiding one's own cognitive biases is important in debugging too; I mutter "listen to the system" as I read logs and error messages to try and avoid ignoring output that contradicts my preconceptions about root causes.