Every extreme sport is a scientific experiment.
They are challenging the limits of human survival, and beneficient to human future development and social environment.
Perhaps, you can't make any sense from it, it seems like only just a personal achievement, however, what they have achieved, possibly helps us to explore more abstruse knowledge!
Those who participate in extreme sports, not only have the spirit of exploration, are also the pioneers in human developments, like landing on the moon, huge amount of money was spent, almost no profits in return, and its great risk, but not a single person on earth thinks it was a waste of money!
Extreme sport is actually a human exploring sports, human desire to understand themselves, the Earth, the universe, to find a way for human to survive in extreme enviroment!!!
But then extreme sport participants are currently individual, their spirits of sport and exploration should be worthy more of our respect, they relied on their own money and vigor to explore and test their stamina, many people share their knowledge selflessly for those who have no chance to experience, most of what they do are definitely impressive!
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