Hi everyone. I have a few ideas floating in my head for a story I would like to write. I have got nothing concrete yet so my story is still very flexible. First of all the story will take place in the nearish future, say in 80-120 years. First of all, I want some ideas of possible power sources, but power sources that could generate much more energy than today's power sources, because the energy needs of an advanced society would logically be much larger than today's power sources. Some ideas I had: #1 nuclear fusion, this is not a very exotic idea and could very well work. EDIT: accidentally posted. #2 Some type of satellite with some type of solar panels harnessing the sun's power at an high efficiency, and beaming it back to earth as microwaves to a collector. #3 This was my original idea and I have no idea if it violates any big law of physics.(please clarify) The idea is that there exists technology that can easily transform matter into its corresponding anti-matter. Then the anti matter and matter could be collided and we harness the resulting pure energy. Secondly I need ideas for weapon systems that are more powerful than our modern nukes. I know our nukes are pretty powerful as is, but the earth is in danger guys! #1 could it be possible to make a type of bomb with nuclear fusion technology ? #2 If I allow for my space satellite harnessing the suns power, and beaming it back as Microwaves you can very well just aim it at your enemies and cook them. #3 anti matter would make for quite effective bombs if it would be possible to produce and contain it. Any ideas for future energy sources and weapon systems that aren't extremely scientifically implausible are welcome. And comments on my ideas is also appreciated. EDIT: Combinations of energy sources is also an idea Posted this from my phone so excuse the poor formatting and please ask if you need more info.