I disagree that having doubts and/or bad impressions alone have a causal relationship to 'limiting success' for countless reasons. (1) success is over-determined and we can't identify such specific causal relationships to it. (2) plenty of people are successful for airing doubts and bad impressions. (3) plenty of people that aren't successful for airing these things, also still display a capacity for having and airing them. I'm interested to see what happens with Musks's Pravduh.com