An interesting by-product of people learning is them asking questions and thinking about the world or their surroundings using the new information they've got. This is great, we all do it. However, as the saying goes a little knowledge is a dangerous thing. If you go to a lecture and you get told one piece of the puzzle that doesn't mean you have an understanding of the whole picture. So, you go away from that lecture with a small amount of knowledge on one part of the picture. From this small amount of knowledge you can't extrapolate wild and grand theories about flying and the earth hitting you when you jump in the air. The best thing you can do when you get a little bit of knowledge is to ask more questions, not to try and compose your own 'ground breaking' theories.