In reflecting on Jimmy Carter’s death, my mind skipped to the Apple TV+ streaming series “For All Mankind,” an alternate-reality drama that imagines how the world might have been if it was the Soviets, not the Americans, who walked on the moon first during the Cold War space race. The alternate reality I’d like to write is in honor of Carter: How would the world have been different had President Ronald Reagan not removed the solar panels that Carter had installed on the White House roof during his presidency with the aim of kick-starting the solar industry and inspiring Americans...