The contradiction is that your theoretical framework is based upon the notion that emotions cause stuttering, this is not a claim that research supports. We know stuttering can occur without social pressure and anxiety, as you said, stuttering can still be present when somebody is by themselves. You said this earlier, "The emotional aspect is the main trigger for stuttering to emerge in early childhood development." That is not a claim that you can provide evidence for. If you can, I'd love to read it. Lastly, I asked for evidence on your claim that exertion triggers stuttering, you weren't able to provide it, then I showed that the theoretical basis for it is flawed and now you are extending the goal post. I'm happy to engage in conversation about stuttering research, only if we are basing our opinions on research, and not personal opinion. You just finished your masters degree, so you should be well aware of that. I'd love to know, are you aware of other factors involved in stuttering pathophysiology?