was this verified by a third party? because if it's just himself validating his own "predictions", it's not really surprising. After all, we get deja vu all the time, which also feels like you predicted something.
Unrelated to drugs, but I’ve had one deja vu where I wrote it down, showed it to a coworker, and then we both watched as it came to pass. I have no theory how that could have happened but it did. I do know it’s not just memory order hitting short/long term memory.