The problem with syndromes correlated with human behavior is they&#x27;re vague enough they could have 4-5 causative factors. The same is true of potential causative factors in autism, sexual preferences or depression. It&#x27;s even true of very acute syndromes like Parkinsons disease (or cancer). We found one direct cause of Parkinsons; fentanyl impurities -there might be 100 of these.<p>We want to use science to explain things, and of course, we should try, but teasing out complex causes that may have multiple components over a lifetime is extremely difficult.