I often attend talks given by famous presenters in which I’m pretty sure that the presenter has no idea about the topic. By have no idea I mean if you are an attendee that just attracted to this talk because of its title or somebody else told you this is a interesting talk you will be impressed deeply by the high quality of talk, pictures, video, etc. But for me cause I’m part of that research I know that’s just a show and the presenter is not aware about our real problems, concerns, accomplishments, etc. So I would say the whole presentation is just like a movie show not something really scientific. I could understand sometimes these kind of presentations will be given to broader audience to just impress people and maybe attract new opportunities like funding. At the end of the talk I have a lot of questions about the topic and how the things works and I know a lot of things are not clear, accurate, or simply is just wrong, but I give up my question cause I know it will not change anything and it will just create a bad reputation for me.
So my question is should I give up my question because of fear of creating bad reputation or politely ask my question which in most cases I know a general answer without any details will be given by the presenter and no further discussion is possible cause again will create bad reputation that I don’t agree presenter and may think I know more than him/her. Any idea or suggestion is appreciated to give a method to how to deal with this kind of situations.