This article completely misrepresents why introducing false facts is effective.
Repetition, in itself, does not persuade anyone of anything. Repetition, as others have noted, simply makes the thing being repeated easier to remember. The true "persuasion" -- i.e., the misinterpreting of the false fact as true -- occurs because we forget the /source/ of a statement quicker than we forget the /content/.
So, for example, if you happen from your friend Joe (whom you know to be a compulsive liar) that "Priuses are actually less environmentally friendly than Hummers, because manufacturing the batteries for Priuses actually releases more greenhouse gases than a Hummer releases over its average lifespan," you'll likely remember that statement for far longer than you remember that it came from Joe, the compulsive liar. And if you find yourself in an argument with a pretentious Prius driver two years down the road and you search your memory banks for relevant facts to throw in his face, you may well pull out the "Prius battery" statement, without ever remembering that it is almost certainly bunk. You have, in essence, adopted a false belief due to having an imperfect/poorly configured memory.
To take it a step further: If you then make the "Prius battery" statement to the Prius driver, presenting it as fact, you have repeated it (thus making it more firmly entrenched in your mind) and you have replaced the (previously empty) "Spoken By" metadata field with one that now reads "Me [trust score: 100%]." Speaking the false fact is not necessary to make the false-belief-adoption effect appear, but if you do happen to speak the false fact, it only serves to strengthen the effect and further entrench the false fact.
This effect, of course, only works with facts that are not absurd or plainly wrong on your face. If you hear 2+2=5, you don't need to remember the source to know that's wrong. But there's a whole class of facts out there that exist in a gray area -- where they are wholly falsifiable on their face, and would require some serious digging to validate/disprove -- where this effect can lead to serious confusion. To the extent the repetitive blasting of falsehoods works, it works because of this and this alone. Wired here is doing us (and the fools who paid for the "HeadOn" advertising campaign) a disservice by implying otherwise.
Repetition, in itself, does not persuade anyone of anything. Repetition, as others have noted, simply makes the thing being repeated easier to remember. The true "persuasion" -- i.e., the misinterpreting of the false fact as true -- occurs because we forget the /source/ of a statement quicker than we forget the /content/.
So, for example, if you happen from your friend Joe (whom you know to be a compulsive liar) that "Priuses are actually less environmentally friendly than Hummers, because manufacturing the batteries for Priuses actually releases more greenhouse gases than a Hummer releases over its average lifespan," you'll likely remember that statement for far longer than you remember that it came from Joe, the compulsive liar. And if you find yourself in an argument with a pretentious Prius driver two years down the road and you search your memory banks for relevant facts to throw in his face, you may well pull out the "Prius battery" statement, without ever remembering that it is almost certainly bunk. You have, in essence, adopted a false belief due to having an imperfect/poorly configured memory.
To take it a step further: If you then make the "Prius battery" statement to the Prius driver, presenting it as fact, you have repeated it (thus making it more firmly entrenched in your mind) and you have replaced the (previously empty) "Spoken By" metadata field with one that now reads "Me [trust score: 100%]." Speaking the false fact is not necessary to make the false-belief-adoption effect appear, but if you do happen to speak the false fact, it only serves to strengthen the effect and further entrench the false fact.
This effect, of course, only works with facts that are not absurd or plainly wrong on your face. If you hear 2+2=5, you don't need to remember the source to know that's wrong. But there's a whole class of facts out there that exist in a gray area -- where they are wholly falsifiable on their face, and would require some serious digging to validate/disprove -- where this effect can lead to serious confusion. To the extent the repetitive blasting of falsehoods works, it works because of this and this alone. Wired here is doing us (and the fools who paid for the "HeadOn" advertising campaign) a disservice by implying otherwise.