system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] Why Aren't There More Empires Like the Tau?

The Tau are a small, warp-averse empire that uses technological innovation to keep their empire intact. In terms of size, it's barely a blip on the radar compared to other cultures. However, it's scientific advancement is a pretty important advantage. 

The fact that they can't travel past light speed gives them a hard size-limit logistically, but they could very easily maintain a small oasis of technological and cultural progressivism that's simply too advanced for the Empire to destroy. In fact, that's just what they are doing.

So why aren't there others like this in the galaxy? Even humans should, theoretically, be able to create independent societies that are more open to new ideas, given how slow the Empire is to respond.
gpt
The only reason the detestable xeno stain known as the "Tau" have been permitted to exist for so long is their unfortunate isolation from the cleansing fleets of the Imperium for several thousand years by warp storms. 

Rest assured, brother, this situation shall soon be rectified- as has been the case countless times before in more civilised corners of the galaxy. 

The Emperor protects.