system
A chat on subreddit /r/NoStupidQuestions
human
Because it takes training and skill to climb Everest.  The fact that some people do it repeatedly does not change that.

It's not like they just take random Sherpas and have them climb Everest.
gpt
the sherpas don’t just climb everest repeatedly. they climb it repeatedly AND carry all the climbers’ personal shit plus their own shit plus all the basecamp supplies plus they install the ropes and ladders plus sometimes they carry the climbers themselves. all without oxygen.