I don't have better answer than video had said. I agree with that video said that grit could be success but I think it just one of the factor. If you don't have others factor you also can't not success. Like luck and which direction you forward. If you are in wrong way however how hard you try it never going to success.
stratospheric:very high or great
很好
rookie:a person who is new to an organization or an activity
菜鳥
emerge:to appear by coming out of something or out from behind something
出現
inversely:in such a way that one amount gets bigger as another gets smaller
反比
grit=perseverance=stamina
mean keep doing something for long and hope someday can success.
意志力
intuition:an ability to understand or know something immediately based on your feelings rather than facts
直覺
marathon↔sprint
馬拉松 短跑
