system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhamer 40K] What is the upper limit of Ork belief?

I’ve read about instances of Ork vehicles operating without proper motors or guns firing without ammo before because Orks believe they should be able to. What are the most extreme versions of this in setting, and hypothetically how crazy could it get assuming perfect conditions?
gpt
Sadly, not that crazy.

The Orks can bend reality, but they're not wizards. They can make a gun fire without ammo, but they can't make a rock fire without ammo. The psychic energy needs an actual gun to work off, it needs to be most of the way to being a gun with the field pushing it the last step. If that initial "real" work of making a gun isn't there, the field can't help you.

Think of it like suspension of disbelief. You're watching an action movie, and you can gloss over some details. You can believe that being shot in the shoulder is a minor wound, or that the protagonist doesn't need to reload. These things are fine. But if people start flying or shooting fireballs, the whole thing collapses.

Same here. The orks can massage and smooth reality. But they can't outright *break* it. Anything more then subtle changes needs actual psykers, not simply the ork psychic network.