Fun fact of the day: everyone knows that the Japanese infamously produce very few children, presently sitting at a rate of about 1.4 births per woman (replacement rate is 2.1 per woman). But did you know that the US would have an even lower reproductive rate if we had a similar proportion of children born out of wedlock? Presently, the birth rate within marriages in the US is 1.13, with all the rest of the births (bringing us up to 1.88 per woman) occurring out of wedlock. Only 2% of Japanese