Paris NASH is a meeting for basic science and interdisciplinary thinking. Since Stephen Harrison was drafted into co-chairing the session titled “Deep Dive into Fibrosis,” he led this conversation. The session included three presentations with a powerful collective message about stellate cells: that different stellate cell subtypes perform in unique ways in terms of how they function, the process(es) through which they become modified and what this represents in terms of performance. This description does not do Stephen and Jörn’s comments justice. It’s a short session, so listen for yourself…