> “It would be so easy for you—you know you wont fall on 5.12,”
In essence, he is so good at climbing, this is like going up a really long ladder for the average human. Sure, rungs on the ladder could break, but even I could climb a ladder 3000ft tall with enough endurance training and not fall. At least, most likely not fall.
To answer your question about the thrill, in multiple interviews, he says that free soloing is the "ultimate test". Akin to closed book and no calculators. Can you really claim that you've mastered a subject if you were allowed to use aids? This is the way he views free soloing.
When you view it like this and reduce the chances of dying to be less than driving on the freeway, I think it is less daredevil behaviour and more the ultimate passion for his craft.
downvoter: justify yourself. Do you object to making the calculation this way, or what?
If free soloing is not usually thrilling, or adrenaline inducing, but something you approach with care, methods, and preparation... what's the point of the induced-risk? Why not take on a similar challenge that's more difficult, minus the non-trivial probability of dead, like most other climbers do?
Gamers find themselves introducing more and more arbitrary challenges to make their accomplishments more difficult to achieve. The difference between gamers and free soloers, is that when gamers fail, they don't destroy, to various extents, the lives of all the people that loved and supported them as a side-effect of their failure, all because they thought it was a good idea to introduce deadly activities into their lives.
How is this not daredevil behavior?