Psyche

The scientists of the Underhill colony pretty much tripped into the unlocking of psychic abilities as they experimented with Ambrosia and its effects and uses and dangers. Once they realized how it could be used with genetic engineering, and they saw the first signs of mind talents, the scientists got the idea that people could be born who could stand guard against the planet, or talk to it, or even the animals. The first sai were accidents, and the possibilities could be seen. Why not replace the technology being lost day by day with a person, who thinks faster?), those who favored physical enhancements took a far more direct approach. Eventually, the differences would end in war.