Surviving? No, not that...Fighting is what it's all about (part 2)

Here's an interesting reason for why I would write something like this post. We have never even been off of Earth! So how will future astronauts be prepared for space missions to other planets? Will they always have to wear space suits, protect themselves or escape from extreme levels of radiation, cold, incredible changes in barometric pressure? Or will they some day be able to tough it out? We need to become fighters, not "survivors". We might eventually need to learn how to live somewhere where the conditions are practically unbearable. And we might even need to reestablish what it means when we consider conditions as "earthlike" and "hospitable". Let's redefine what this means; theoretically, we would not need to go with water for a few days. Also, we would need to go with oxygen for a hew minutes. Would we starve to death after a week? Well, yes, we would. With our current state of what we are capable of, yes. We can't breathe underwater. False. We are just not accustomed to it. We have not evolved to overcome these kinds of challenges, because we do not even care to put ourselves into situations that are life-threatening so that we can push the limits of our boundaries. This post may be updated more and more in order to explain what all of this (our existence) is essentially all about.