The Range of Range
“You will hear it said that lasers have ‘a pathetically low range’ and are ‘suitable only for point defense and the inner engagement envelope’. To put this statement into its proper context, one must understand the proper scale of starship engagements; i.e., that the pathetically low range in question is approximately a light-second, or to put it another way, that the enemy vessel must close to within a distance roughly equal to twenty-five diameters of your home planet before you can engage them with this notoriously short-ranged weapon.”
– The Dirtsider’s Guide to Interplanetary Warfare