Doomsday Preppers. I really don't understand these people at all. They are always saying the world is going to end at a certain date like 2000 for example and then that comes and it turns out to be rubbish and then they say it is going to end in 2012 and 2012 comes and the world is still turning and now they think it is going to be 2022 or 2031. If the world ends in the next 20-50 years I doubt it is going to be any of the dates they think it will be.