PayPal intends to fine users who engage in activities that the payment service believes come under the categories of “hate” and “intolerance,” according to its last updated Acceptable User Policy (AUP). In September, PayPal announced that it was amending its AUP, which is scheduled to come into effect in November. The policy stated that PayPal…

Everything about cinema’s first blockbuster, “The Birth of a Nation” (1915), seemed new: its three-hour running time, complex narrative, large cast of characters, and its powerful emotional effect on audiences. Its director, David Wark Griffith, was born in 1875, the son of a Kentucky farmer. A mediocre actor, he toured the country for years with…

After childhood, about two-thirds of the world’s human population loses the ability to digest milk. As far as we know, 100% of nonhuman mammals also lose this ability after weaning. The ongoing ability to digest lactose, the main sugar in milk, into adulthood is a biological abnormality. Lactose cannot be directly absorbed in the intestinal…