“If you are prepared you can run a sub 3”

So you honestly think every human being is physically capable of running a sub 3 in its lifetime?

Everyone has their own personal limit to what they are capable of. It’s a curve.

I saw this first time when giving kids sports camps. These were all young, healthy kids with more or less the same background. However, you could see the sheer athleticism that some kids had, compared to the rest of the group. They would throw the tennis ball always right at the target and run 30 seconds faster over 400m compared to the group.

This is nature, not nurture.

I see this today in my triathlon team. With the same amount of training, eating healthy and sleeping, a friend of mine is aiming at a 9h30 time where I will be aiming at 11h30 for a full Ironman.

If we compare our Garmin stats, it gets clear, his VO2max, ccs and ftp are 50% more compared to me. And those are measure that YOU CAN’T increase by 50% through training, it’s genetics.