eleborations please?
Harlan Ellison had only watched the two pilots when he began writing COTEF. Thus, the characterizations of Kirk and Spock are very much in line with the second pilot. A bit contentious, not the partnership of later episodes.
But in terms of Vulcan... Kirk chides Spock that Vulcans didn't achieve space travel until two centuries after humans. The only human food that Spock can keep down is cabbage and asparagus. Then says he needs Youbash and Keva as nourishment. Keva being a purple juice.
Oh and one interesting detail, the Tricorder has a vocal interface and speaks back when Kirk uses it.
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