Nice! It was mind opening for me when I realized this. It meant I could work on my stutter, instead of work on a fear response (which for me was blocking). My thoughts are that blocking is a behaviour that happens due to our fear of stuttering. The idea of stuttering in front of others brings up a fear most people aren't open to deal with (yet). Ideas pop up such as "will they laugh?" and fears like that are often too strong, cause us to build apprehension towards any such potential outcome (being ridiculed), causing to feel a sense of danger. Having this sense of (thought up) danger activates this fear response (blocking), much like the fight, flight or freeze response. The moment you come to a point where you stop caring about whether or not others can hear you stutter, is the moment things start to get better. But, as I said before on this forum, a speech pattern has still already been built. Stuttering has in a sense become your "accent", or "lisp". Changing speech takes effort and time. This, I think, is why some still stutter if after they claim to 100% not have fears about it anymore. Just like how some people use words such as "like" 100 times in their sentences. It takes time for them to not talk like that anymore. It's so ingrained. Hope this helps.