system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhammer 40k] Why didn't the Emperor just rationally explain to everyone what the Warp and Chaos were right from the start?

I mean, 40k knowledge of the warp is actually pretty rational, and that's saying a lot. We know that it's a separate dimension that houses a bunch of horrible shit. We know that there're four main players within the Warp: Khorne, Nurgle, Tzeench, and Slaanesh. We rationally know that these four entities are *not* Gods, because there was a time when they didn't exist at all. We also know we can manipulate the Warp to suit our own purposes, so it's not some kind of untouchable realm beyond our comprehension.

Big E would've known all this information - why didn't he just explain it all using reasons and facts rather than try to cover it all up? You can't exactly continue to deny the fact that Chaos exists when literally all of your spaceflight travel depends on it. The information would've gotten out eventually, and Big E must've known that. So why didn't he just explain it to people instead of murder everyone who didn't agree with his bullshit cover story?
gpt
Yeah , that would be a great idea.

*"Well, there are these extra-dimensional beings that give you incredible power and potential immortality if you pray zealously and do unspeakable things in their name. But that totally not cool, don't do that."*

The emperor has probably more than 50 millenia of experience dealing with people. Telling them corruptive shortcuts to power is not a good idea.