Read To simulate and fool in Ehab Heikal’s blog
The device required to 100% accurately simulate a physical entity will always be larger than the physical entity. It thus follows that there exists is no device within the universe that can accurately simulate this universe. And so any entity within this universe can not have 100% reliable prescience. That does not however mean that a physical entity within the universe can not achieve a simulation of this universe or a part of it that allows it to fool other entities into believing it has fool proof prescience.