I remember a tech in Galciv I where you could supposedly build a controlled wormhole to another part of the galaxy and I'm wondering why they are not in the game would this possibly make it too easy to win a game.

Another thing is that if there were black holes in the galaxy possibly near the center they would make the game more intresting you could explore them or ride over them with your ships and a random event would say either you have lost the ship to an unknown gravitational mass or you could be lucky and it would say that the ship was able to stay far enough from the singularity to cause no great harm to your ship and it survives.

they would definatly add some spice to the game because you wouldn't neccarily be able to mark them or find them easily. maybe also an option to turn off black holes for beginners.