That is simply false. He is the Chief Engender in SpaceX. I have heard multiple interview with people that work at SpaceX or used to work at SpaceX and the all

That is simply false. He is the Chief Engender in SpaceX. I have heard multiple interview with people that work at SpaceX or used to work at SpaceX and the all talk about working on stuff and Elon being the one who makes engineering decisions and is hand on with all the product. Nobody knows as much about every single part of the Falcon 9 as Elon. Again, this has been said by many people. Please actually inform yourself and don't be guided by bias.