A note about polling...

From the Guardian UK...Dan Roberts and Mona Chalabi...


But perhaps, like the uncertainty principle in physics, the more an election is scrutinised the more the scrutiny risks interfering. If this interference is compounded by technological shifts making traditional poll methods increasingly unreliable, there could be a far larger threat to the democratic process than simply the free speech of pollsters.


The influence is especially bad if the polls are paid for by political campaigns...