Nobody should shut the hell up. All possibilities are fair game in the arena of ideas. That is why I say I don't believe in anything but the possibility of everything. 150 years or so ago Jules Verne wrote what has become to be known as science fiction and just about everything he wrote about has come into reality. Most science fiction is an extrapolation of what is known projected into the future. What we dream up today will become tomorrows reality. That is the power of the mind.