Our most vulnerable populations wouldn't be of any interest as crew members of a spacecraft. They're the ones who wouldn't get to go at all. The point of a cre

Our most vulnerable populations wouldn't be of any interest as crew members of a spacecraft. They're the ones who wouldn't get to go at all. The point of a crew wouldn't be to demonstrate human safety, but rather to do things automation can't currently do (e.g. improvise solutions based on a deep and broad background of general knowledge + specific training coupled with high basic intellect, in austere environments under great personal stress). People like that don't get their foreheads tattooed for money.