"I disagree with your theory. 1) you can still have neurological issues even when speaking fluent when alone. it could be that your system is too sensitive to stress and other demands because it is not optimally developed. 2) some people sometimes stutter when alone and sometimes not. 3) i believe there is a continuum in neurological issue: from severe to mild. 4) speaking on your own is NOT the same as speaking to others, which demands much more resources even if you have no stress."
Here is Ousmane's theory:
DRAFT OF A THEORY ON STUTTERING
-It’s not the situation itself that generates stress but the perception we have of it. Also, before a stressful situation, there is an automatic interior answer that is not managed by our will. For fluent people, the answer is proportional to the level of stress. If the stress lasts for a certain period of time, that answer will be recorded and served by the