>>12219972It has been suggested that two shock fronts of gravitational waves, say from two black hole mergers in a relatively small region of space and time, might meet and form new singularities – or micro-black holes - which would be short lived then bang off in black hole evaporation events.
Those are warping spacetime and if you are doing the same artificially by warp drives or wormholes you might get effects like that. Wormholes are extreme curvatures of spacetime much like black holes, which would tend to involve lots of gravitational waves. Gravitational waves propagate at light speed so two systems opening something like that up, a pair of wormholes or some other spacetime-twisting gate, might blow themselves up some decades later when the waves meet those coming from another distant gate.
While science fiction often shows folks disrupting wormholes or other space gates to prevent an invasion, and theoretical wormholes can be disrupted or broken by dumping too much matter into them, the effect is likely to be very, very explosive even in astronomical terms. You do not blow up the incoming fleet you blow up the solar system, that sort of thing.
