I've generally heard the randomly, unbacked quote: "Up to a third of the population is easily swayed by any kind of persuasion/marketing".
I don't know the exact percentage but it is certainly non-zero. Given that many elections in recent memory are won by margins of <10%, it doesn't matter if the majority has a BS detector since that majority isn't the target of "mechanized persuasion" aka A/B testing based advertising.
If there is minority of population with low BS threshold they will only matter if there are only two parties and the rest of the population is also closely split.
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I've generally heard the randomly, unbacked quote: "Up to a third of the population is easily swayed by any kind of persuasion/marketing".
I don't know the exact percentage but it is certainly non-zero. Given that many elections in recent memory are won by margins of <10%, it doesn't matter if the majority has a BS detector since that majority isn't the target of "mechanized persuasion" aka A/B testing based advertising.
If there is minority of population with low BS threshold they will only matter if there are only two parties and the rest of the population is also closely split.