Islam, Christianity and Buddhism are religious cultural powers, deep, defining the ends and means of human lives. All three promise life after death – eternal salvation in paradise, eternal dissolution in nirvana – if rules are observed. Unlike Judaism and Hinduism, all three are universal, for all humans at all times. So, they caught on across faultlines, way beyond Arabia, Palestine, Nepal-India into other, even enemy, economic-political-military realities. Arabia was Muslim; Islam expanded from Iberia to Delhi by 1192. Palestine became Muslim-Jewish; Christianity became the religion of the Roman Empire in 313; from 395 divided into Orthodox East and Catholic West, from around 1500 divided into Catholic South and Protestant North. Casteless Buddhism was evicted from Hindu Nepal-India to neighbors; a thousand years later it is rooted all over East Asia. Three religions became three civilizations of three vast regions. Three successes? Yes, but at a price. The price was...