This is a TDT-flavoured problem, I think. The process that our TDT-using FAI uses to decide what to do with an alien civilization it discovers is correlated with the process that a hypothetical TDT-using alien-Friendly AI would use on discovering our civilization. The outcome in both cases ought to be something a lot better than subjecting us/them to a fate worse than death.
This is a TDT-flavoured problem, I think. The process that our TDT-using FAI uses to decide what to do with an alien civilization it discovers is correlated with the process that a hypothetical TDT-using alien-Friendly AI would use on discovering our civilization. The outcome in both cases ought to be something a lot better than subjecting us/them to a fate worse than death.