One [paradox] is that pornography follows in that wake of women's liberation. The first instances of hard-core pornography were in late 18th-century in France, "the Golden Age of Women." The next wave in the 20th century comes from Sweden, one of the first countries where women voted. Then Germany, again, at the forefront of progress. Then America in the '80s, when women were closing the pay gap. And Japan, same thing.
