>If such a galaxy were to collide with a normal-matter galaxy the fireworks
>would be quite amazing.
It would be quite scary! I assume that the side with the most matter of its type would win. Is there a way that our side can gain an advantage so that were not annihilated?! Since annihilation produces pure energy would that hold the two universes apart in a rhythmic pattern for a while? I'm picturing power much greater than a supernova.
Not to be million questions or anything but if disaster is possible its probably worth while to prepare for it now.