Talk:Omniscience/@comment-24053170-20180624205851

One possible limitation to this power would be if the target predates the very concept, idea, origin and principle of Omniscience, so even if the user can see everything that happened in the past, it would be meaningless as the target is so ancient that no information or knowledge could ever possibly exist on them, as knowledge itself didn't even exist yet when they were around.

So you know everything that happened in the past, but would that truly help you if the target predates absolutely everything, including the past and all knowledge itself?

How could you possibly know something that happened before the beginning of time? As there isn't even technically a history to know anything about...

Also, one other possible weakness is that just because you know absolutely everything, doesn't mean that you are able to truly defeat or kill your opponent, as the knowledge might show that there is simply no way to win and that whoever you are facing has no weaknesses to exploit.

Take the Fountain of Hui and the Eagle Scope from Xiaolin Showdown as an example, as despite having access to all knowledge, it couldn't come up with any possible way of killing or defeating the Spiders.

Rather it could only find a means of sealing them away in stone, meaning that at some point they will likely return and nothing the cast can do can stop them anymore.

So just because you know everything, doesn't automatically mean you can truly defeat your opponent if they have no weaknesses.