A skeptic..what’s wrong with that?if you haven’t tried it then really you are a poor skeptic and a nay sayer, and if you are really vocal then you are an unreasonable skeptic and nay sayer. Flat earth comes to mind and measurable proof isn’t always easy. In fact, I would say that there is no measurable proof but it definitely appears to be very audible.
Sorry in advance, just my thoughts.