Comment Re:Make it so. (Score 4, Interesting) 867
I'll assume, for the sake of argument, that conservation of energy still applies to the discussion. That is, you can't move a chunk of the crust into orbit without expending more energy than the gravitation potential energy thusly imparted into said chunk.
Let's assume the energy to make the handwavium drive go is equal to the potential energy of a 500 kg mass, as it says in TFS. Presumably we've got matter-energy conversion or antimatter fuel to make this work, that's no more implausible than the handwavium required to make the FTL drive work in the first place.
How much energy is liberated by converting 500 kg into energy, say in the form of 250 kg antimatter to 250 kg matter? About two hundred and fifteen times as much as was released by the largest nuclear weapon ever detonated. Make no mistake - that's a huge amount of energy, but nowhere near planet cracking levels. For another point of comparison, the impact that (probably) killed the non-avian dinosaurs was a couple million times as powerful.
Further, if we've got some way of supplying that kind of power, in a package small enough to fit on a spacecraft, wouldn't the power plant itself be a more dangerous weapon than a handwavium suicide run? Dangerous in the sense of city busting, not planet cracking.