Why the hell do spaceships have self-destruct systems? I mean, what’s the point of them, other than being a plot device? I’ve heard people say “it’s to deal with pirates and ship hijackings.” So, destroying your ship, with you along with it if you can’t get to an escape pod, is a deterrent for pirates? That makes even less sense. Now, I get the idea of rigging a ship to blow (basically, throwing a wrench Into the clockwork), but having a pre-made system designed to destroy your ship makes no sense. That’d be like having dynamite wired to your car in case someone attempts to carjack you, and you have a button to press to destroy the car, you and the hijacker at the same time. There’s no purpose for such a system to exist.