Look at what computing has done to advance the detail on Astrology Charts. ;p
Science also advances by discarding bad scientific theories.
Is Freudianism falsifiable? Or any other theory about the mind that's not a branch of neurobiology.
We can see the epileptic brain misfiring in real-time. We can only speculate about "madness."
And replacing "possessed by demons" with the term "mentally ill" doesn't make the illness more observable than the demons.
Dante