An interesting and daring theory on the past emergence of evolutive advantages, re-opening the present understanding of normalcy and projecting serious future dilemmas for genetic screening.
archaeologist Penny Spikins at the University of York, UK, "I think that part of the reason Homo sapiens were so successful is because they were willing to include people with different minds in their society - people with autism or schizophrenia, for example."
By embracing the unique skills and attributes that came with unusual ways of thinking, early humans became more inventive and adaptable
Some researchers describe such genes as "orchid genes": nurture them and the carrier thrives, neglect them and a maladaptive personality trait appears. If Spikins is correct, many other genes associated with developmental conditions and mental illness should possess such Jekyll-and-Hyde characteristics. Our ancestors may have benefited from this.