 What is the major difference between Orthan and Earth culture that appeals to Thig?
Here he patiently sat down to wait for an Earthman or an Earthwoman to pass. In this way they could learn whether a planet was suited for colonization by later swarms of Orthans. "With a psychic relay we will transfer the Earthman's memories and meager store of knowledge to the brain of Thig! So it was that the bodies of the Earthman and the Orthan were strapped on two parallel tables of chill metal and the twin helmets, linked to one another by the intricacies of the psychic relay, put upon their heads. Men had no mates on Ortha, sex had been overthrown with all the other primitive impulses of barbarism; so he was incapable of understanding the emotions that swept through his acquired memory.
 Earth people are individuals, capable of making their own decisions in life.
 Earth people wear clothing, where Orthan people wear none.  Orthan people are unsentimental, and after experiencing emotion Thig wants to be rid of it.  Earth people enjoy a much more lush planet, with more things to enjoy.  Earth people are individuals, capable of making their own decisions in life.