As little as possible. Except in time-travel campaigns, I dislike causality violations intensely. It always puzzles me when people balk at piddling violations of physical laws but blithely accept causality violations without a murmur.Has anyone thought about the Zhodani Pre-Cog Artifact?

Still doesn't explain why the Imperium sent the bulk of its operational forces in the Regina subsector to destroy a calibration point.Maybe Zho High Command "saw" a battle at Two Suns and thus sent an appropriate force to the calibration point that the Imperials are on the way to destroy having received info about it from the Federation of Arden intel community.
I'm afraid I don't see the problem solved. :nonono:See problem solved and even get to work in the Arden intel weenies too.
Hans