On a related note, what is the assumption of Vulcan life spans in the novels? The shows portray that even though Sarek died from a degenerative mental disease and looked fine physically at 202, T'Pol in E^2 looked decrepit at about 185. I tend to assume that Vulcans' lifespans average about 300. It's something that annoyed me, that the T'Pau from "First Steps" somehow couldn't be the T'Pau from "Amok Time" because it was 200 years later! (Obviously ENT gave a better reason.) If Vulcans only live to about 200 and humans to about 150, it really makes Vulcans' attitudes about living so much longer suspect.