Epistemic Closure
An organisation, group or person filters out sources that contradict the core narrative until nothing can get in; deliberation among the like-minded then pushes beliefs further toward the extreme.
An everyday example
A leadership team that reads only the analysts who rate the company a buy.
What it can cost you
Confident consensus with no contact with disconfirming reality; being the last to know.
Warning signs
- Our sources all agree with us.
- Dissent is treated as disloyalty.
One thing to do
Institutionalise the dissenting source: a designated critic, a subscription to the opposing view, a quarterly 'what would change our mind' review.
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