Off Topic — HabitableZone

Off Topic » in reply to I can say this much about an invasion from space

re: I can say this much about an invasion from space

Good points, but even the near-lightspeed impactor need not be a problem. Any civilization capable of accellerating spaceships to those velocities will already have the technology to transform planetoids into petunias, and it will have no motive for a war of conquest. At least, not an economic motive.

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