An interesting article. However the neurological/biochemical structure works out I don’t think people are equally prone to god belief. From a purely observational position on current cultures, if you remove social requirements for religion the believers drop below 20%. This is based on European societies that are no longer “religious” and on my own background in rural Indiana, about as bible belt as you can get. The great majority of religious activity was driven by family and community tradition and not from personal belief. So I’ve come to the 10%-30% safety range as valid. Understanding a true genetic origin would allow those percentages to be refined giving people greater freedom to give up pretense. There is a great deal of discomfort in not being able to believe as those around you present themselves as believing.