Some people believe you can get to high dan rankings just by pure effort.
others believe this requires innate ability.
here is a quote from Guest1dan from kgs
DukeDaniel(me): would you say effort is the biggest thing? or is it natural ability
Guest1Dan: u need to be smart..like smart as mount everest
this seems to be up for some debate.
wait for part 2 coming soon
Nature vs Nurture GO Style: The research