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But there are moments — by nature unexpected — when that confidence vanishes. Suddenly our conscious models, theories and [[nomological machine]]s are less valuable than the tacit information we gather from the changed behaviour of everyone around us. ''There is something important we don’t know''. It is better to mimic the behaviour of those around us. We presume they know — or that they are imitating the behaviour of someone else who knows.  
But there are moments — by nature unexpected — when that confidence vanishes. Suddenly our conscious models, theories and [[nomological machine]]s are less valuable than the tacit information we gather from the changed behaviour of everyone around us. ''There is something important we don’t know''. It is better to mimic the behaviour of those around us. We presume they know — or that they are imitating the behaviour of someone else who knows.  


This is the extraordinary behaviour of fish when a shark bursts through the school. This is the bewitching murmuration of starlings. Suddenly that entropic normal distribution of Brownian motion disappears and everything particle heads magically in the same direction.
This is the extraordinary behaviour of fish when a shark bursts through the school. This is the bewitching murmuration of starlings over a twilight meadow. In an instant that entropic, Brownian normalcy disappears and every particle darts the same way at once, as if by magic.


This cannot happen to a cup of tea.  
You could spend a lot of time trying to predict
 
We may be mesmerised but we are not surprised to see starlings perform their aerial magic. We would be go smacked if a cup of tea did this.


When the planet has suddenly gone into total lockdown as a result of an unexpected global pandemic, buying habits for toilet paper and, oddly, lentils, suddenly ''change''. The fact that there is only three tins of lentils left on the shelf leads you to grab them. The fact that there are none leads to a nation wide run on tinned pulses people don't, in normal times, much like.
When the planet has suddenly gone into total lockdown as a result of an unexpected global pandemic, buying habits for toilet paper and, oddly, lentils, suddenly ''change''. The fact that there is only three tins of lentils left on the shelf leads you to grab them. The fact that there are none leads to a nation wide run on tinned pulses people don't, in normal times, much like.