Resolving dynamic phenomena at the microscale in space and time - that is, in a nutshell, what my current research is all about. The world around us is in constant motion, and most of the macroscopic phenomena we experience are goverened by dynamic processes happening at the microscale. To reveal and understand those complex mechanisms, I develop and use the unique tools and capabilities of the TOMCAT beamline that allow us to collect X-ray tomographic microscopy datasets at unprecendented temporal resolutions to create 4-dimensional microscopic movies. Applications range from geoscience via food-processing, materials testing and complex multiphase flows all the way to biomechanical investigations. The latest speed record at TOMCAT was set at 1000 tomographic scans per second (Garcia-Moreno, 2021), while sub-second time-resolutions of up to 20 tomographies per second are routinely available to our user community. Currently, I focus on expanding the range of available sample environments to make these capabilities accessible for an even larger range of applications. In parallel, we are working on implementing real-time reconstruction algorithms to establish a true feedback loop of experiments that are controlled and driven by the observed microscopic response of the sample. Last but not least, the SLS 2.0 upgrade provides exciting opportunities for the future, and our team is working hard to make the next generation imaging beamlines at the SLS a reality, allowing to push the current capabilities even farther.