Got a few questions:
1. How do carriers work? I don't see where they are in the tech trees, nor any information on them.
2. How in god's name do you get a treaty beyond an exploration treaty with another race? The only treaty the AI has available is an exploration treaty, regardless of standings, techs, or anything else in my games. Either it's really buggy or I don't know what I"m doing. In a related note how would you know what treaties are in effect?