text: Hello BMracek,
  
  You write: "Perhaps the reason Kalenjins are better runners is because they just run more than anyone else and have therefore developed their ability to a higher level than anyone else."
  
  So using your favoured hypothesis, that would be another reason to STOP using affirmative action in society, yes, as when Trudeau selected his initial Cabinet? In other words, if we accept your view, if some groups are better at certain activities because they simply gravitate towards doing those activities more than other groups...
  
  ... is that not a strong argument in favour of dismantling and ENDING the kind of affirmative action embraced by Trudeau?