Tyburski was a professional adventurer, financing his pursuits via magazine articles and speaking gigs, and even making a documentary about his quest. His whole raison d'etre was to push past his limitations, showing what a person is capable of when their mindset is strong enough.
Humans are wired for growth. Self-determination theory shows that well-being depends on three core needs: autonomy, competence, and relatedness. Interestingly, meeting external markers of success does not guarantee these needs are met internally. You can have stability without autonomy, comfort without meaning, or connection without authenticity.