AT 30,000 FEET… you are almost 6 miles (9.7 kilometers) above sea level. The human body is not made for these conditions. Temperatures are can plummet to -60F (-51C), the brain is starved for oxygen and each step is a new experience in pure agony. It’s difficult to breathe. It’s difficult to think. It’s difficult to move. And you still have to endure another 444 feet (0.14 kilometers) to get to the peak. So much for the good news.