If Charion Lloyd lived in the 21st Century he would be diagnosed as being on the autistic spectrum. He has trouble with social situations, hates loud noises, and can talk incessantly about highly specialized subjects without being aware no-one is listening.
However, Charion’s personality and genetics were no accident, but were carefully created. His genes were specifically selected to create his autistic traits, and his childhood shaped to emphasize them.
As a result he is incapable of social interaction but excellent at concentrating on specific tasks – especially Jump calculations, flight plans and maneuvers.