The future has become childless. Here I look at the global collapse in birth rates—now over 70% of humanity lives in sub-replacement societies—and argue it isn't mainly economic. A society stops having children when it can no longer picture tomorrow as genuinely new. Loneliness https://t.co/nTnhbn6EWE #BirthRates #Loneliness #FutureOfSociety #Nocountrycodesarepresentinthetweet.