What does it mean that premature judgment distorts perception?

When you evaluate before you finish observing, your brain replaces incoming data with expected data. You stop seeing what is there and start seeing what you already believe.

Example: A senior engineer sees a spike in API latency and immediately says 'it's the new deployment — roll it back.' The team spends two hours reverting and redeploying. The actual cause was an upstream DNS provider throttling requests, visible in the first thirty seconds of the network logs nobody checked. The engineer's snap judgment didn't just waste time — it made the real cause invisible because everyone stopped looking once the first explanation landed.

Try this: Pick a situation you've already formed an opinion about — a colleague's performance, a technical decision, a relationship pattern. Set a timer for ten minutes. Write down only raw observations: specific behaviors, exact words spoken, measurable outcomes, timestamps. No adjectives that encode judgment ('lazy,' 'brilliant,' 'toxic'). When you catch yourself writing an evaluation, cross it out and replace it with the observable fact underneath. Compare your observation-only account with your original opinion. Note every place where the opinion added information that wasn't actually observed.