The notion of alternative facts was roundly mocked on social media.
But there are many alternative facts that are just as absurd from an empirical point of view but widely endorsed nonetheless: that dinosaurs once coexisted with humans; that vaccines cause autism; that genetically modified foods are dangerous to eat; that humans are not responsible for climate change. Such misconceptions have been documented for decades.
Alternative facts about science are commonplace; they are a well-established and long-accepted backdrop for public discourse about scientific issues.
Why are we outraged by alternative facts in politics but complacent about alternative facts in science?