not much to say

Currently i've been reading the acclaimed novel The Hitchhiker's Guide To The Galaxy . It truly is an enthralling book with a very strange cast of character. From a maniacally depressed robot to a rockstar who decided to be dead for a year for tax reasons, this book never ceases to amuse. But that's not what i want to talk about. What i want to talk about is the reoccuring sub plot, that life, the universe (in its mindboggingly biggedness), and everything, fits together like a jigsaw puzzle, and that everything is pre determined (or post determined depending what time you are in......it gets quite confusing). It got me to wondering, what if this is really true? Is there anything we do to stop it, or will our every action, no matter how random it may be, be already recorded in the confines of history itself? Or perhaps, we may actually be able to change our destiny, thus changing ourselves and everyone around us?
I would honestly like the world to work this way, but it may not . However i wont let the predeterminedness of the universe stop me from being me and caring what happens...or i might....whatever the future tells me to do.......or someting along those lines........