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|I'd laugh if we actually managed to become a space faring civilization by becoming a peaceful race, but then all we get for our efforts is war with other species instead of ourselves, as is found in the Star Trek universe.|
Now there is a lot going against humanity when it comes to space faring, far more than what meets the eye. Below are some basic variables that we will encounter that you may have already guessed, however, prepare to be floored since your guesses probably do not capture to true largeness of the hurdles we'd have to leap to make space travel possible at the very beginning!
|In Fun We Trust|
Variable 3-- Time is the last problem, because even if we managed to send off a star ship at sub-light speeds, we'd never reap the benefits of all the discoveries due to time dilation. As I wrote in my two other articles on time dilation on this web page, basically we'd travel forward through time due to the fact that time is not the same for all objects in the universe and time is greatly affected by speed. The faster you go, the faster your "time" speeds up relative to everyone else, but sadly, only you speed up....which means the Earth will experience millennia when you experience a single year. I bet you didn't see this coming as a variable. It's real, it has been proven many times. There are mountains of experiments and results confirming it. Even sub-light speed travel would result in massive increases in time experienced only by the object/person going fast, since time is not a constant for the whole universe. The time on Earth is not the same time as Pluto, in fact, when we send satellites, we have to account for large time delays and dilation, which makes it very difficult to interact with probes the farther and faster they go from Earth. I will say this though, that time does not change like what you may think. The person going fast does not see their clocks going fast or see anything at all unless they are looking at other objects that are going a lot slower. So when the astronaut looks out the window, he sees only a blur because other objects are experiencing time differently in a slower capacity, but in your super speed, you'd see them go super fast, so planets would be zipping along their orbits in a blur since you are feeling faster time. You'd see everything else faster, but unless you see other objects outside your ship you'd never realize this. So this does not mean you will live for 10,000 years! Think of a wormhole and traveling into the future. When you arrive on the other side of the wormhole, does that mean you lived for 10,000 years? Nope. You simply experienced time differently than everyone else, like a needle on a record skipping forward. This is the essence of time dilation, and I promise you that it is extremely hard to fathom because it is so abstract. However, I can explain it better. Read my time dilation articles (two of them), I promise it's ten thousand times easier to understand than what I just talked about.
Well, there are a lot more variables as you can probably guess. But these are the big guys! I hope you enjoyed that!