From New York to Heilbronn: Matter to Life bridges the Atlantic
Any scientist worth their salt would tell you the key to scientific rigour is reproducibility! Two years ago, the Alfred P. Sloan Foundation brought the Matter to Life community together for the first time in New York City. This June, we replicated our first success at the Bildungscampus in Heilbronn, drawing PhD candidates, Fellows, and researchers from both the Sloan Matter-to-Life program and the Max Planck School Matter to Life for three days of talks, posters, and the kind of over the coffee conversation that tends to matter as much as the podium ones. If the New York meeting was about discovering how much common ground existed between two programs, asking the same big question from different sides of the Atlantic, Heilbronn was about seeing how far that shared scientific curiosity has developed.
The Red Thread of Matter to Life: Commonalities and Divergence
Across more than thirty talks and fifteen posters, one theme kept resurfacing: the boundary between "chemistry that happens to be complicated" and "life" is being redrawn from several directions at once, and the restructuring looks less like a single discovery than a slow convergence of very different toolkits on the same handful of problems. On the origins side, Dieter Braun's work on RNA polymerization in geological flow non-equilibria met Nicholas Hud's newly discovered route from amino acids to peptides using ammonia and hydrogen sulfide, multiple groups converging on the idea that early Earth's messiness wasn't an obstacle to chemical evolution but its driving force. Neal Devaraj showed RNA driving its own compartmentalization into membrane-bound vesicles, while David Baum and Nicole Anderson modeled how "codispersal" among cooperating autocatalytic cycles could have been the first step toward biological individuality; different perspectives trying to answer the question of how molecules learned to stay together.
Engineering Synthetic Cells: Learning from Life and Re-Engineering
On the topic of synthetic cells, the conversation has visibly matured from "can we build a minimal cell" to "how do we make it behave." Petra Schwille argued that de novo protein design, rather than repurposing natural proteins, may be the more promising future substrate for synthetic cell function; Kerstin Göpfrich's group has pushed RNA origami to a 20-kilobase scale, well past the field's presumed theoretical ceiling, and used it to build genetically encodable membrane pores. Job Boekhoven and, separately, Laura Heinen, are tackling the harder problem of keeping these systems alive in a thermodynamic sense: coupling genotype to phenotype in fuel-dependent droplets, and building the metabolic plumbing, that might let a synthetic cell sustain itself rather than simply exist. Meanwhile Erwin Frey, Andrew Spakowitz, and Andrea Musacchio reminded the room that living systems have already solved versions of these organizational problems at the level of membranes, chromatin, and kinetochores, offering physical design principles the synthetic side is still working to borrow.
Physics of Life: Computing, Sensing, and the Energetics of Life
A third thread ran through the physics and computation of life itself, often quite far from the wet lab. Philip Kurian's group used the slime mold Physarum polycephalum to ask how much computation biology can extract from non-neural matter, while Cecilia Garraffo and Srigokul Upadhyayula showed AI doing the reverse - decoding exoplanet atmospheres for biosignatures and training vision models on petabyte-scale microscopy to make sense of life's own dynamics respectively. Between them, talks from Zhiyue Lu, Milo Lin, and Pablo Sartori expounded on the thermodynamic bookkeeping underneath it all: how far-from-equilibrium systems sense and respond, what a nonequilibrium circuit theory implies for the limits of biomolecular computation, and, more simply, how much energy a unit of biomass actually contains. It's a reminder that "matter to life" is as much a question for statistical mechanics and fluid dynamics as it is for chemistry.
Beyond the podium, the conference retained what made New York work in the first place: unstructured time. Poster sessions ran during every lunch and coffee break, a conference dinner brought everyone together at the Alte Reederei, and an afternoon at the Experimenta gave the group a shared, decidedly non-academic reference point. For a network as geographically dispersed as this one, spanning Germany, and a growing list of institutions across the US, these three days in Heilbronn recaptured the essence of the first meeting: turning a shared research question into a shared community. We're already looking forward to many more such repetitions with high reproducibility!
