In January, we met on the Homewood campus of Johns Hopkins University for a meeting focused on predictions in microbiome science. More details about the event are available here: https://blog.umd.edu/m3/upcoming-events/january-9-10-2019-m3-meeting-on-predictions-and-the-microbiome/ . The meeting brought together over 130 scientists who participated in a day packed with scientific presentations and active discussions about the current state and future of predictive approaches in microbiome studies.  A report summarizing the meeting is available here: M3_brochure_report_2019_final-1zwt9k3 .  We are also preparing a manuscript summarizing the key findings of the discussions that took place in the breakout sessions.