by ralfd | 2025-09-01 01:12:44+00:00
It was bottom-up driven in the urban city centers, in the rural villages it was top-down (“pagan” means provincial villager).

https://www.astralcodexten.com/p/book-review-the-rise-of-chr...

> The rise of Christianity is a great puzzle. In 40 AD, there were maybe a thousand Christians. Their Messiah had just been executed, and they were on the wrong side of an intercontinental empire that had crushed all previous foes. By 400, there were forty million, and they were set to dominate the next millennium of Western history.

> Imagine taking a time machine to the year 2300 AD, and everyone is Scientologist. The United States is >99% Scientologist. So is Latin America and most of Europe. The Middle East follows some heretical pseudo-Scientology that thinks L Ron Hubbard was a great prophet, but maybe not the greatest prophet.

> This can only begin to capture how surprised the early Imperial Romans would be to learn of the triumph of Christianity. At least Scientology has a lot of money and a cut-throat recruitment arm! At least they fight back when you persecute them! At least they seem to be in the game!

How did Christianity win? Pro-natalism won over generations against the Roman elite:

> By the Imperial era, Roman fertility was plummeting. Partly this was because the Romans practiced sex-selective infanticide, there were 130 men for every 100 women, and so many men would never be able to find a wife. But partly this was because the men who could find wives dragged their feet. (Male) Roman culture took it as a given that women were terrible, that you couldn’t possibly enjoy interacting with them, and that there was no reason besides duty that you would ever marry one.

> but no amount of love or money could make them have children. Dense cities discouraged large families, Roman children were expensive … Nor did the sex drive force the matter. Horny Roman men had their choice of a wide variety of male and female slaves and prostitutes - despite Augustus and his spiritual heirs’ fuming about monogamy, this was never really enforced on the male half of the population. When men did have sex with women, it was usually oral or anal sex, specifically to avoid procreation. When they did have vaginal sex, they had a wide variety of birth control methods available, including the famous silphium but also proto-condoms and spermicidal ointments. If a child was conceived despite these efforts, abortion was common albeit unsanitary (maternal death rates were extremely high, but this was not really a deal-breaker for the Roman men making the decision). If a baby was born in spite of all this, infanticide was legal and extremely common.

> Christians followed the opposite of all these practices.

> They recommended that men love their wives, and held this as a plausible and expected outcome. This was not exactly unprecedented, but it was a dramatic reversal of Roman custom. The Christians banned adultery (and, unlike the Roman bans, gave it teeth), meaning that married men who wanted sex had no choice but to go to their wives. They held that sex had to be procreative, banning anal sex, oral sex, homosexual sex, and birth control. And obviously they banned infanticide

> The end result is that while pagans delayed marriage, cheated, had nonprocreative sex, used birth control, performed abortions, and committed infanticide, Christians did none of these things.

> This section gave me a new appreciation for conservative Christian purity culture: it was obviously suited for the environment in which it evolved, and it’s also obvious why its founders would etch it so deeply into its memetic DNA that it’s still going strong millennia later.