Even light, which travels so fast it takes most races thousands of years to realize that it travels at all, takes time to journey between the stars.
Douglas AdamsOne of the problems, and it's one which is obviously going to get worse, is that all the people at the party are either the children or the grandchildren or the great-grandchildren of the people who wouldn't leave in the first place, and because of all the business about selective breeding and regressive genes and so on, it means that all the people now at the party are either absolutely fanatical partygoers, or gibbering idiots, or, more and more frequently, both.
Douglas Adams