I was invited by the new journal Cultural Analytics to respond to an essay by Sarah Allison, “Other People’s Data: Humanities Edition.” Sarah’s essay makes an important argument for what she calls “data recycling,” and she touches on my collaboration with Ted Underwood on the way. My comment expands on the conditions for effective data reuse. I will be happy if the conversation does not get bogged down in the technicalities of “reproducibility,” and we instead insist on asking how we carry on cumulative research programs. My short essay is open access: From Reproducible to Productive.