 Why is it important to watch the ones who don't become physically ill during the conditioning process?
Flight Officer Robert Craig surrendered the tube containing his service record tapes and stood waiting while the bored process clerk examined the seal. "No specific destination," supplied the man as he punched a key on a small instrument, "Air-lock ahead and to your right. "Place your clothing in the receptacle provided and assume a stationary position on the raised podium in the center of the lock." "Insert your right arm into the instrument on the central table," commanded the same voice he had heard before. Short of Gravitational conditioning, there is nothing to stop you from going to Terra." Your body is conditioned to a normal state of free fall, or at best to a state of acceleration." "You were ill, couldn't keep your balance, felt dizzy. It helps suppress certain physiological reactions to an entirely new set of conditions. They play an important part in our awareness of balance. Without gravity they act up for a time, then gradually lose function. Returning to gravity is rather frightening at first." "Men on a rolling ocean acclimated themselves to a rolling horizontal. There were excellent psychological reasons for the old stereotype, the 'drunken sailor.' During the days that followed, the psychologist seemed to Craig to become progressively more didactic. They were incredibly varied, even those that supported life. He had weathered difficult landings on worlds with rip-tide gravities, had felt the pull of the incredible star-tides imparted by twin and even triple star systems.
 Their bodies' familiarity with gravity naturally makes them suspicious
 They could be tapped as leaders for Freedomite missions  It is a sign that they are deviant extraterrestrials  Their bodies' familiarity with gravity naturally makes them suspicious  Their bodies may naturally produce paraoxynebutal