Greg Egan has written a couple of less-jokey stories that deal with a related idea (that is more plausible). The first story is "Luminous" from 1995, but I don

Greg Egan has written a couple of less-jokey stories that deal with a related idea (that is more plausible). The first story is "Luminous" from 1995, but I don't have a link to a free copy. The second is "Dark Integers" which you can find here: http://www.asimovs.com/_issue_0805/DarkINtegers.shtml http://www.asimovs.com/_issue_0805/DarkINtegers.shtml