Why psionics solves everything

[Ryuuk]

It was a big point in the comic that this probably isn't a double bluff. If the gate was there, they'd have found it already. If it wasn't there, well, they'd have confirmation of it by only seeing anything gate relevant in those two instances above (Roy blowing up, Girard placing the trap), but get nothing beyond that.

Sorry, I'm working with the assumption that the gate isn't there. If it is then the power works, and I'll gladly admit I didn't see it coming.