Posted: Nov 14, 2010 12:57 am
Well, on the basic subject of this thread of whether or not the limitations to reasonable-time-period interstellar space travel is possible, I'm sure we can agree that first one has to expand upon what is meant by a reasonable time period and then one has to address the engineering. Other questions are a side-show that may have some little purpose (Things like the size of the entire universe are totally irrelevant and only highlight that you are grasping at straws and bad at it), but they aren't what was intended clearly in the OP.