Don’t get me wrong. I think stuttering can happen for different reasons. Sometimes for me if I change my mind mid-sentence and switch the direction of my idea, then it causes a block because my brain is not shifting into gear fast enough. For example, if I want a coffee, but change my mind mid-sentence that I want a hot cocoa, then maybe I’ll stutter on the word “never mind”. Like this: “Hi, I’d like a coffee with...”Ne-ne-ne nevermind, actually I’ll get a hot cocoa.” But still in a sense, that’s inhibition, because my brain became locked on the idea that I’d get a coffee. So it interpreted wanting a hot cocoa as an error or a disruption to the original desire. So in the form of a stutter block, inhibited the change of plan from taking place. This is what you call an approach/avoidance conflict. It’s like anything else in life. For example, if someone bought you a Lamborghini and gave it to you, you would just hop in that baby and just drive it away. But if they told you to go out in the lot and pick from any sports car you want, but you can only choose one, you would hesitate and slow down to choose what you really want. The more cool cars in the lot, the more internal conflict and potential to cause you to freeze up and not know what choice to make. It’s the same with speaking. The more ideas in your head that you consider to be of similar importance, before you speak, the more internal conflict there is. Because your brain is trying to sort out what is the most effective/safe thing to say. And even when you finally make your choice consciously, there are unconscious desires competing with the idea you decide to communicate to others. So stutter blocking happens as a freeze response and sign that on an unconscious level, you are unsure of yourself.