Aviv Regev is what anyone would call a true science hero. She is not only a pioneer of single-cell genomics and systems biology, but also a great mentor. In 2020, she moved from her professorship at MIT and the Broad Institute to the biotech company Genentech, where she is Executive Vice President and Head of Research and Early Development. We talked with her about the advantages of setting ideas free and about how to be a generous collaborator. Aviv told us how creativity can arise from a deep frustration, and how time elasticity can help achieving it. She proposes that the scientific process involves going with the flow, but that your personal taste may channel that flow into directions that are most interesting to you.For more information on Night Science, visit https://www.biomedcentral.com/collections/night-science .