LOL I'm not sure it's obvious how a space-catapult could be built at all .. I'm pretty sure some Darwin nominee would have tried it by now if so /s Come to thi

LOL I'm not sure it's obvious how a space-catapult could be built at all .. I'm pretty sure some Darwin nominee would have tried it by now if so /s Come to think of it - the "obvious" flaw to this whole scheme is the need to store enough energy gravitationally and then release it such that it projects something beyond earth's gravitational pull. Strikes me as a non-trivial engineering problem ...