I published this column in Salt Lake City’s Deseret News on Thanksgiving Day 2017: “If you wish to make an apple pie from scratch,” the late American astronomer and science popularizer Carl Sagan once quipped, “you must first invent the universe.” As Americans enjoy their Thanksgiving dinners today, many of those dinners will include apple pie. But any other food would serve to make Sagan’s important point. Unless we ourselves grew the apples and grains... Read more