There used to be such a punishment: if a person committed a heinous crime, then he had two options: first, the death penalty; second, being sent by helicopter to the sky above the Amazon rainforest and lowered to challenge the limits of survival. Maybe many people think the second method is interesting. We all should know that the Amazon rainforest is known as the "lungs of the earth." In addition, it has all kinds of poisonous weeds, poisonous insects, beasts, and even terrifying cannibal tribes. Here, death and survival are just a moment. The chance of breaking out of Amazon is one in a thousand, one in ten thousand, or even smaller.