There's a couple the things the author missed - not that it changes the conclusion that much, but adds more context. The first is how the rise in indoor rock g

There's a couple the things the author missed - not that it changes the conclusion that much, but adds more context. The first is how the rise in indoor rock gyms in turn gave rise to youth leagues and competition. This has created a huge leap forward in the skills of elite climbers because many today (the "gym rat" generation) have been climbing only slightly less longer than they've been walking. The second is how the funding of outdoor adventure/exploration has evolved through the last couple of centuries, from securing precious resources (though mountaineering never had much of that), to a sort of angel/philanthropic model (geographic societies and alpine clubs), to government backed nationalism, to the current gear branding and sponsorship that is fueled by social media. This current model drives a huge amount of activity in outdoor endeavors that have helped create the crowd sourced effect he's talking about.