Just for an idea, for a 100 million light year trip to take 5 years, from the point of view of the crew/ship, you'd have to be travelling at 99.99999999999975% the speed of light, or 299,999.9999999993km/s.
You're missing some Special Relativity Theory there. If you are travelling at the speed of light (which is impossible by normal means, as you stated), the entire universe is a single point. Assuming we can come very close to the speed of light, a trip to a galaxy 100 million light years away could take 5 years (or more, or less, depending on how close you are to the speed of light) according to the point of view of the crew and the spaceship itself. From Earth, it'd take 100 million years (more, since we're not actually at the speed of light), but the ship doesn't have to be built to last that long, nor does the crew.
I've been working on a project where I create and post one illustration a day, and today I chose to illustrate my favorite part of Diablo: the Secret Cow Level.
Hope you like it.
Check out more illustrations that I've done on my blog: http://maldenb.wordpress.com/.
A new illustration will be created and posted every day until next Christmas. I plan to do a few more Diablo-related illustrations sometime in the future.
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