> why don't we stutter in it despite all the difficult situations or even if all people are looking at us? Because these words are easy. Yes and no. Yes, the words are easy but in my opinion, all words are easy beacuse it's only the physical movement of the muscles, for example, if we are eating then we are also moving the same muscles but we don't 'halt the movement invulantarily' when eating. When we are voiceless mouthing, we moving the same muscles but we don't stutter. In other words, 'moving speech muscles' in itself when speaking is easy, in my opinion. The movement is easy, but 'prioritizing forward flow' is hard. You ask: 'Why do we not stutter on certain words or in certain situations?'. In my opinion, it's because, at that moment in time we prioritize sending command signals over emotions, tension, substituting words, corrections and other feedback. That's all. If we assume (this hypothesis) that this unhelpful condition is at the root of chronic developmental stuttering, then killing feared letters could lead to 'prioritizing forward flow', but 'not killing feared letters' could also lead to 'prioritizing forward flow'. So, if you think about it, is the 'trigger' or 'reaction' really that important? Likely, it's not important at all, as explained above, rather the condition to prioritize not sending command signals is (to outgrow stuttering as an adult, in my opinion)