It's still dopamine. Dopamine + freedom. It starts with access to tv, movies, leisure travel, and disposable income. These things take you out of the evolutio

It's still dopamine. Dopamine + freedom. It starts with access to tv, movies, leisure travel, and disposable income. These things take you out of the evolutionary algorithm. Boredom, uncertainty, low dopamine, mind not preoccupied = having children. We identified this trend already in DINKs, it just turns out biology's adversarial algorithm is far more widespread than just that one demographic pattern. Smartphones are an accelerant.