CSvax:Pucc-H:ab3@pur-ee.UUCP (10/13/83)
Nazgul@apollo asks whether or not a light-sail vessel could reach the speed of light...and states... "It seems to me however, that part of the concept is that it would take more energy that you can carry (alternatively the idea is that your mass becomes infinite, in which case this question is moot)." You're absolutely right--the question is moot. The source of the energy, both in the sense of "Where does it come from?" and "What form of energy is it?" does not matter; it still takes an infinite amount to accelerate an object with non-zero rest mass to C. Darth Wombat