I got thinking recently about the different ways that people attempt to create energy. In ancient times, people had muscle power in some form, either human or animal. Eventually we figured out power of moving water, then came other forms of power that are either more powerful or portable (or both). Today we possess a wide array of ways to create power - muscle, hydro, steam, wind, petroleum, solar, among MANY more. Including discussion about their strengths and weaknesses, I would like for us to brainstorm possible ways people can create energy that either are only theory today or not even at that stage, might even talk about completely fictional sources - those might become real someday.