Abstract
In this paper I introduce the thesis of cultural readiness about science found in the historical analysis of the Alvarez impact hypothesis of the end-Cretaceous mass extinction. Cultural readiness posits that in some scientific domains, there are scientifically apt questions, methodologies or theories that are only developed, considered, and adopted by a scientific community once some combination of empirical and cultural factors obtains within and without that domain. I demonstrate that 21st century philosophy of the historical sciences has been motivated by a commitment to legitimization and has prioritized epistemic ingenuity and has not addressed cultural readiness. I then argue that one vehicle for cultural readiness in the historical sciences is their use of narrative explanatory forms. Narratives offer an arena to blend cultural and empirical phenomena by their characteristic elicitation of familiarity and emotionality.