Medicine is derived from medicinal plants that had been used. So we need to be finding the medicinal herbs we can learn besides the few ones known to us. Communities for people are needed, with greater independence from anything that is from civilization. And those in such communities are to care for ones with physical needs among them, who are not to be neglected or to let anyone just die while we do nothing to aid or help them. We have things to learn, we will make things and they are what we need to know how to do. Other people have made such things, it is how to be independent. But in a community there can be such working together.