> If you put 100 different Chess players in the same Chess position I think your chess analogy perfectly illustrates how you and I see things completely different. No one here is playing the same game. Everyone's board looks different. Even if I were to accept your chess analogy, I'm proof that we're not all facing in the same position. I achieved fluency in my 20s using the same program I had tried in my teens. The X factor was me. Obviously I wasn't in the same place in my teens as I was in my 20s. With regards to mental v physical. You and I are talking apples and oranges. You're talking about mental states and types of conscience experience. When I say speech is mental, I mean that it is a cognitive function. You most certainly can impact speech by physical means. DAF devices are an example of how stutterers can realize their capability for fluency using a physical measure. I agree physical can impact mental. But it is just as true that mental can impact physical. ​ >Also, stuttering is not "mental" in the slightest. Try to ease up on your absolutism BS.