Experts' inability to say they don't know

Three answers were allowed: yes, no and don’t know. Experts knew more, as expected. They also appeared more willing to recognise names that had been invented.

Status hates an empty space.

At work, the guess does not stay politely in the room where it was made. A market forecast improvised under pressure enters three plans by Friday. A conference answer becomes a quotation. An analyst recognises the silhouette of a familiar problem, names it, and everyone downstream assumes somebody upstream checked the face. Authority launders uncertainty wonderfully: each person repeats the claim a little more cleanly until the original shrug returns as policy.

I would trust more experts if they used labels on their certainty:

Known.

Inferred.

Speculative.

No idea, but give me until Thursday.

That last answer can be extremely valuable. It stops a company spending real money on a fiction produced because silence felt socially awkward.

Culture decides whether experts can say it. Reward the fastest response and speed will beat truth. Punish changed minds and uncertainty will go underground until it fails in public. A senior leader demanding an instant answer when the question requires evidence is commissioning a guess with authority attached. Ask how the view formed, how confident it is, what would change it and what can be checked now—not as a humility ritual, but because those details determine whether the answer can bear weight.

The expert answer I want to hear more often is already in the list: “No idea, but give me until Thursday.”

Behavioural principles

Behavioural ideas at play in this post

Short, plain-English explanations of the principles behind this post, with links to related books and examples in the archive.