When Henry Markram had an autistic child, he was one of the most renowned brain researchers in the world. He worked at the Weizmann Institute and the Max Planck Institute, won numerous research awards, and gave lectures around the globe. His method for measuring how cells connect became an international standard. But then came Kai. Suddenly, questions and concerns filled the nursery, between the teddy bear and the moon lamp. Markram's respected papers were less helpful to his son than the songbook from which he sang to him at night. Thus, the neuroscientist plunged into the question of what autism really is. After years, he achieved a breakthrough. And his answers turned everything believed about autism upside down. It was said in expert circles that autistics lack empathy and have little to no feelings. After years of dealing with his son's condition.