To be honest scientists have been contradicting eachother over and over again and to be totally honest i think i stutter because of an earlier trauma in childhood so again i kind of connect with her view on it and since it cant be refuted (if it can be let me know) why not let the people who believe in it believe it. P.S: There is alot of misinformation floating around but at the same time it is such a complex disorder that, what is misinformation to you might help someone else.