quantum mechanics

joseph and i watched a show on the history channel a few days ago about lightspeed. there were some interesting topics that were discussed within the topic of lightspeed including spacetime which brought up a lot of questions in my mind. when i have time at work i've been trying to read up on spacetime to have a better understanding of our universe and the way it works. having loved book the time machine in high school i was able to understand some of what i read. i'm trying really hard to understand this more but without having much knowledge about general relativity it's more difficult than i thought. it's also really interesting to me how much theory is involved and how little of it is proven fact.