Pronatalism is the latest Silicon Valley trend. What is it – and why is it disturbing?For Malcolm and Simone Collins, declining birth rates across many developed countries are an existential threat. The solution is to have “tons of kids,” and to use a hyperrational, data-driven approach to guide everything from genetic selection to baby names and day-to-day parenting. They don’t heat their Pennsylvania home in winter, because heating is a “pointless indulgence”. Their children wear
