But it does mean that so long as your space ship is fast enough, you shouldn't die of old age before you get there. Given the speed of light is an absolute limit, and the nearest star is over 4 light years from our system, if you can get to the stupendous speed of half light speed then it's only 8 years there and 8 years back from your point of view. It'll be 32 years for anyone on earth, while you've only experienced 16 years. In comparison the fastest object I can find that we've launched from the solar system is the Voyager 1 probe which is currently travelling at a speed of about 17km/s, which is about 17647 thosandths of the speed of light. But if we could ever get close to half light speed it seems emininently doable.