I think about this all the time!!! II can build a fire haha.. and teaching myself to garden, I am so excited I have Papaya seeds sprouting today. I moved to an area that I can also feed myself and positioned myself to have things to trade as well in case it gets bad. Worst case scenario stuff.. live near water to collect and heat.. and have been slowly learning more things.. plus I can cook and my boyfriend can build things:) I need to check her article out!!