Board Thread:Warhammer 40k General Discussion/@comment-6078851-20130130174042/@comment-3580035-20130314102318

I was only joking btw.

However, Tau have no need for psykers to combat other psykers. It is more beneficial for the Tau to not have psykers themselves as then they can't be corrupted by Chaos, can't cause Daemons to be summoned. Tau also don't need good warp drives yet, as their worlds are densely populated and well structured/developed. This means they don't suffer from long and vulnerable supply chains as major bases are always close by (their bad warp tech also means they aren't vulnerable to daemonic attack while in the Warp). If they were to expand further, they would probably devote more effort to better Warp drives. Who knows, in future they may find another psychic race to aid them in the development of better FTL, or develop something similar to the super-techno-sorcery of the Necrons.

(note to not go on too long about this, as it is somewhat deviating off-topic. In reality, the fluff isn't going to advance to the point that the Emperor dies)