system
Given the following post, respond as if you're commenting on Reddit:
human
[40k]Why is it that the Tau have such a small war presence that they atr basically immune to chaos, yet, advanced technology and AIs which are inanimate objects, are not? Follow-up question, why is human technology susceptible to chaps corruption when Tau technology apparently is not?
gpt
A mind is a mind, even if in-cased in a inanimate object.

Abominable Intelligence developed by Humans is similar to human minds themselves. They have has much mental capacity as any normal human and thus a presence in the warp. A soul.

Tau are unique, much like certain humans their minds are different in a way that mean they don't produce much of a presence in the warp at all. So they don't attract the attention of demons, there isn't much there for a demon to eat. They don't have much of a soul.

The Tau likely build their own computers like their own minds, their computers which are much weaker then older Human AI don't produce much of a presence in the warp.

The Machine Spirit is merely the computer systems used in Human technology. Abominable Intelligence that is.... tamed or broken. Tech priests try to maintain these spirits in the machines, the ghosts in the shell by a religion of maintenance. Sometimes when this tech is lost, demons can possess the minds inside the machines, even to the point of ejecting the previous occupant.

Tau tech isn't advanced in that way, their computers are essentially brain dead. A demon cannot posses a..... lesser lifeform like a Tau computer. At least not as easily as a Human AI.

If a demon is possessing something, barring things like swords (Because of warp fuckery) it's likely that it still possesses a broken AI or the capacity to hold one. Technology from the dark age of technology likely all ran on AI. Modern Humans use most of their tech, derived from tech, based on tech that their don't understand.

They build things based on instructions they can barely follow and in many cases leave to the machine spirits to process anyway. Human technology is more powerful then most know, and even the Tech Priests of Mars can only scratch the surface of what they are actually making their stuff out of, and how best to take advantage of it.

And when the machine spirit is unleashed, most Human technology proves to be the best in the universe, in existence. A demon would love to unleash the true potential of a Land Raider, or Titan.

A Tau mech however is far more mundane and basic when compared to the relics used by Humanity. It's full capacity and ability is exactly what the mech does at all times. The Tau aren't holding back because they don't understand like Humans do. Humans don't actually know how to use their tech. Human tech is better.... if not just a random collection of stuff that constitutes a functional weapon.