Quotations and aphorisms by Charles Simonyi:
HAM radio is very inexpensive, it is nearly unlimited and free to use. The only limitation is that you can only talk for five minutes to any given person because the station gets out of range within that time.
Basically, most good science in space flight has to do with the behavior of the human body in space. That is where we are lacking info, and where info can only be obtained by flying in space.