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Some people are not adventurous. In the slightest.

I used to do hardcore no-gear rock climbing. I've done skydiving, bungee jumping cliff diving, etc. I didn't do any of that stuff _often_ (except rock climbing in college) and definitely wasn't an "adrenaline junkie" who would do any death-defying stunt that crossed my path. (Wing suit? Nah.) Even though it's been decades since I did any "thrill seeking" type activities, if I was offered the opportunity to go to space? You bet your ass I'd jump on the rocket.

Yet I know multiple people that wouldn't take a free trip to space. Some, even if "the mission needs you" probably would still have to be dragged kicking and screaming. (Also note: in the book, he is one of three people sent on the mission, he has a barely-there legit excuse of "I'm not actually _necessary_ to the mission." Even though the mission really would have been better off with him. Obviously he ended up absolutely necessary and vital; but there wouldn't be a compelling story if he wasn't.)

It was asking a lot of him... Like A LOT.

Great book!
 
I loved the book and can't wait for the movie to release.

The only problem I had with the character is that, from what I remember, they had to force him to go. Even after all the drama and the people killed and set backs and the reason why (to save the world) he was still like I'm a coward and I don't want to go. You mean as a character he couldn't muster the gumption to save humanity and had to be strapped to a rocket and sent?

Some people are not adventurous. In the slightest.

I used to do hardcore no-gear rock climbing. I've done skydiving, bungee jumping cliff diving, etc. I didn't do any of that stuff _often_ (except rock climbing in college) and definitely wasn't an "adrenaline junkie" who would do any death-defying stunt that crossed my path. (Wing suit? Nah.) Even though it's been decades since I did any "thrill seeking" type activities, if I was offered the opportunity to go to space? You bet your ass I'd jump on the rocket.

Yet I know multiple people that wouldn't take a free trip to space. Some, even if "the mission needs you" probably would still have to be dragged kicking and screaming. (Also note: in the book, he is one of three people sent on the mission, he has a barely-there legit excuse of "I'm not actually _necessary_ to the mission." Even though the mission really would have been better off with him. Obviously he ended up absolutely necessary and vital; but there wouldn't be a compelling story if he wasn't.)
Depends not just on your character, personality, and temperament, but also on your aptitudes, skills and experiences; moreover, some people will accept the necessity to take risks in some environments where they believe that their skills may make a difference, whereas others, they would never dream of going anywhere near.
 
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