graeme wrote: 10,000 hours = Two hours a day for fourteen years.
Were orienteering simply running, then hours times days certainly helps (injuries and ageing apart - thank goodness for WAVA comparisons), especially for distance events. Nurture always seems to play second fiddle to nature once the foundations are in place, even though many even at club level can find the time for a good proportion of the ten thousand.
Two hours a day orienteering technique practice might be a different matter. Long practice in kicking a ball on a pitch or hitting a ball on a court might be within the range of many but who has such time for daily fresh O-technique challenges? The need to keep it fresh seems to require time (and money) for travel which is probably available only to the few who live close to a good range of mapped quality areas and structure their lives appropriately. So does nurture not then triumph?