The GeoComputation conference series started in 1996, under the leadership of Prof.Stan Openshaw and colleagues at the University of Leeds. Since 2001 it has run every other year, to alternate with the GIScience conference series. GeoComputation 2019, like the previous GeoComputation conferences, attracted researchers from around the world-North America, Europe, Asia as well as from Australasia-presenting research of impressive breadth, embodying the "art and science of solving complex spatial problems with computers". 2 It truly embodied the aims of the conference series in other ways too, featuring state-of-the-art work at the convergence of multiple disciplines, from experienced to early-career researchers, including opportunities for presenting graduate student findings.The full proceedings of the 2019 conference can be found online. 3 There you will find extended abstracts and short papers on many and varied topics, including AI, machine learning, spatial data mining, computational movement analysis, cyber GIS, open geospatial, VGI, environmental modelling, remote sensing, surfaces, hydrology, qualitative spatial reasoning, geospatial text processing, urban and social spatial analysis, geosimulation, agents, geostatistics, uncertainty, and a themed session on novel spatiotemporal paradigms. As always with this conference series, it was wonderful to see the skilled use of advanced statistical, computational, and machine learning methods used to solve challenging and real geographical problems.For many of us involved, this event was our last in-person conference, prior to the COVID-19 outbreak that forced the cancelation of so many conferences, and the adoption of on-line delivery for others. It remains to be seen whether this disruption will become a permanent state of affairs for us, given the climate crisis we must now face. If this turns out