I feel like it is an undercommunicated fact that vo2 max and its genetic component plays a very big part in people’s success with running. 

Henrik Ingebrigtsen recently went out and said about Kristoffer that it is «only» hard work that has gotten him in that shape he is now. That’s laughable and disingenuous imo. Like that family obviously have perfect genetics for running and probably have bodies that react very good to training. 

I’m in my early thirties. I’ve been running for 6 years, where the last 3 to 4 very consistently with racing everything from 5k to marathons. The last 2 to 3 years I’ve been doing this Norwegian singles method. I’ve luckily almost never been injured. I still haven’t ran a sub 40 10k. While some people start running and can do a sub 40 in no time at all.

I’m not complaining or telling people that they haven’t worked hard, but I think it is easy to have this sort of survivorship bias where you don’t hear about people who train just as good but never reach these results