美国医学协会曾考虑过这是否可以被认定为成瘾，但结果却表明还没有足够的研究。
The American Medical Association considered whether it should be considered an addiction but concluded there's not enough research.
珊顿回忆：“那时候是90年代末，因为我在之前听说过有这么个平坦地球协会，就着手研究他们究竟是怎么回事，我最终认定他们的观点是正确的。”
It was the late 1990s and I started doing research into what the Flat Earth Society was. I had heard of it and, when I did some more research, I eventually ended up believing its ideas were true.
但是第一次跳伞我要求你一定是要在，最低9000英尺以上的，因为这个也是美国国家跳伞协会USPA，认定的安全跳伞高度。
But for the first time, I asked you to be at least 9000 feet above, because this is also the national parachute Association USPA, identified as the height of the safety parachute.
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