I partly disagree. I believe these techniques are ways of controlling your speech in the short term as to work on the psychological aspects in the long term. If you make these techniques become muscle memory they do work. I'm not saying it's a cure, but it's like anything, if you create habits that are the opposite of what you are doing currently it'll improve said aspect of your life. Your stutter is mostly in your brain, I think we all understand that. But you can change the way your brain works by doing something over and over again, that much HAS been proven in the science world. And for *some people* that also can work with stuttering. Almost all methods of reducing stuttering say the same thing. And the thing is these techniques will work better with people who haven't stuttered for a long period of time. Why? Because it will take a shorter amount of time to counteract these habits and they will see results faster. Now I'm not saying that everyone's stutter works this way. No disrespect to those it didn't work for, but it's worked for me and a lot of other people I know. So there must be an ounce of truth in it. Edit: Also to say what you said about sounding like a robot, it's better sounding mechanical than not being able to say anything at all, at least in my case.