Originally Posted by Child-of-the-Emperor
Not quite. The webway was created by the Old Ones and then inherited by the Eldar.
The problem the Emperor had was that he couldn't replicate the material used in the webway's creation to build an artificial bridge in order to 'hack in' to the established network from the Imperial Palace. Thus he had to use his own psychic powers (via the Golden Throne) to maintain an artificial bridge by which Imperial troops could then access the wider webway network. This cannot be used as evidence to suggest Eldar psykers rivalled the Emperor's power. In fact, although it is impossible to prove either way, it does seem that the Emperor was the most powerful psyker the galaxy had ever seen.
How about the Cabal that seems to have knowledge that no single entity does?
The Chaos Gods actively worked to hinder the Emperor's foresight in the build-up to the Heresy. Again, this can hardly be used as evidence to suggest he wasn't the most powerful psyker.
So it means that if the Emperor didn't have his massive army to expand the Empire that humanity would be crushed with or without his psychic powers.
I have a follow up question here also. If he has such powers why would he not recognize the Chaos taint about one year into the heresy. Horus was destroying giant amounts of planets and/or taking them over. Yet the "greatest mind" as said by some, couldn't figure out Horus and his allies were beyond saving until Horus killed someone in front of his face. (you can answer with the forces of Chaos had their plot to play that tricked him.....but we all just know that's not logical, the Emperor screwed Chaos over many times, until finally meeting his end by his inferior son because he let him beat him within an inch of his life. With his incredible psychic might he was able to foresee what my 12 year old cousin could. The person responsible for killing billions or more of the loyalists...was OMG possibly evil. Such a brilliant mind yet so seemingly stupid if you look at the real world implications of being blind to your childs evil for almost an entire seven year war.
The Chaos Gods actively worked to hinder the Emperor's foresight in the build-up to the Heresy. Again, this can hardly be used as evidence to suggest he wasn't the most powerful psyker.[/QUOTE]
It might not provide facts, but if you use deduction, the Emperor was at least emotionally weak minded compared to others. Psychic power? Fine. Most powerful, then I disagree, good decision making is what makes a good leader, and being a deity/immensely powerful psyker does not make you the most powerful or the most intelligent.