Awesome post. I've recently gotten interested in physics and have a very basic question not related to Destiny, maybe some physics people here can answer.
What essentially is the difference between energy and matter, at a more quantum level? Is a photon only energy? Why doesn't energy have mass? Maybe these questions are invalid, if so I'd like to know why.
I'm no expert on it, and this will likely confuse you (it did to me) but I think this video kind of addresses some of it https://www.youtube.com/watch?v=Xo232kyTsO0