Hi, I'm 17. And have always been interested in theories like time travel,time dilation, general relativity, etc. Anything to do with spacetime. sorry if this might sound..childish. I"m just curious I've always thought about alternate realities, so to speak For example, if you're a women, and accidently get pregnant as a teenager, and you decide to have an abortion, would this alter the future ? What if you decided to let that baby grow up in the world, become an adult, and continue his/her life? Would this alter the future? Obviously, you can only choose one choice. Which is the better choice to have? What are the chances this person might alter the course of reality in the future, or change the world for a better way? What might happen if you had an abortion, and never had that child, how would this effect the world? Would there be a 'butterfly' effect, per se, or a bunch of events descending from this one decisoin altering the world and reality forever? Does each decision you make have precussions, which therefore has consequences and thus can change the course of reality? Hope this makes sense. I am still learning. This is just out of my imagination.