Real scientists and I'm using real these guys are actually out there looking for alien signatures in space. This is actual. They chose Carl Sagan to craft the, we send out like a signature that's a message to another species if we find it. But that's very much like one of our buddies was telling me about this science fiction book where we're sending out this signal and we finally get this signal back and it says, stop sending that signal. If you have no mass, you could go to speed light. So that must be what be the X factor is is to eliminate mass. It has to do with light speed. The faster you go the heavier yet.