So I was talking to a friend of mine last night about this and that, and I remarked that one of the things I always wanted to do is to ride a bike across the country. She thought I was crazy and even if I wasn't it would be almost impossible. I know it isn't impossible, and I've even heard of people embarking on this without a whole lot of planning beforehand, but since I don't really know what it takes she wasn't convinced. I don't really know what it takes though. What do you all think? Impossible? Easy? Does it take a massive amount of training and planning? Anyone here done it before?