On January 20, 9:30 AM–6:00 PM at Maison des Ponts, DotBlocks brings together industry leaders, top simulation researchers, public stakeholders, and students to tackle the future of Industry 4.0. Heavy-industry players from metallurgy, glassmaking, and process design will share the stage with leading labs and agencies to share strategy and numerical simulation technology. The focus: turning numerical simulation, from high-fidelity models to digital twins, into measurable industrial performance. The stakes are concrete: decarbonize and reindustrialize the manufacturing sector. Organized by DotBlocks, positioned at the interface of industrial demand and research excellence, the event aims to convert scientific breakthroughs into operational advantage and workforce development.