if they faked this whole scenario regarding the stroke with Sharon, or a part of it (why did they whisk him off to the wrong hospital right
away?) could it be that some kind of laser surgery shown to the apostle John in this vision would have looked like a sword, or even a surgical scalpel, inserting a device in the brain etc? Not trying to press my point but just trying to think out of the box here.
We know how he remarked upon seeing locusts and such and how difficult it would have been for him to have described our own technology, let alone that of these other entities that blow our own minds.