Drugs. They were both on some hard stuff back in the day. Maybe even now, occasionally, I don't know.
Regardless, drugs create micro fractures in the brain, it's recently been discovered. It's been known for a while that some of the hard stuff punches holes in your brain. That's how it's described.
And that's how your conundrum gets squared. Neuralogical wormholes allow them and their best thoughts to bypass the logic regions of the brain.