interesting subject. I have read there maybe a genetic link too, but dont know how creditable is the source.
I think many, who are not MI professionals, would compare sz to autism. i say this because it is likely some individuals may share some behavior traits shared by autism and sz, however i think severity of a particular behavior trait matters a lot. I think if the behavior trait(s) can be helped by medicine or not matters too.
By this i mean i saw an old utube vid of a man talking very unsensibly who was diagnosed with disorganized sz, and unmedicated.(before)
Then they showed a a conversation after medication (of 8 wks best i can remember). There was a world of difference and his statements were cohesive and on subject.(after)
Autism, since it is on a spectrum now, is the new term for what people call mentally and/or intellect challenged, yet degree must always be considered.
People with severe autism can appear the same as a person unmedicated with disorganized sz. This is to the average person who knows little about MI. yet i feel certain a MI professional could tell the difference quickly.