system
Given the following post, respond as if you're commenting on Reddit:
human
(Wh40K) What interaction have the Tau had with Chaos Gods? Have any ever been corrupted?

Bonus question: Are the Tyranids aware of Chaos? Are the Queens psychically capable of sensing the presence of them?
gpt
The Tau have only a basic knowledge of the Immaterium, as their minds hardly register within the Warp.  To the Chaos Gods, they are like the little white dots you get in your peripheral vision; you notice they are there, but focusing on them reveals nothing.  To date, not one Tau has been corrupted by the Chaos Gods.  Also to note, the Tau try to establish diplomatic relations with their enemies prior to combat; one of the exceptions are the forces of Chaos, as they see no way to reason with them.

We do not know much of how the order Tyranicus and their dealings with Chaos.  What we do know is that the great Hive Fleets casts a great, immutable Shadow across the Warp, blanketing the Immaterium with a haze of psychic activity that drive the Psyker mad.  For reasons yet to be determined, this Shadow does not attract the attention of Daemons and other denizens of the Warp.  Pray the Emperor that it never does.