I am currently on sabbatical at the Princeton Center for Information Technology Policy. My focus here is on understanding human cognition and cooperation, how these affect and are affected by our use of technology, and how technology might affect our level of social investment. I am also extending my work on AI's impact on human society. More generally, I have natural science research interests concerning distributed intelligence, interacting learning systems, how these come to evolve, and their benefits to both individuals & collectives. My original interest was modularity in individual intelligence–the differences between brain regions in architectural structure, memory and processing–also how animals regulate attention and expression across different goals and actions. This has extended to social learning, culture, and their role in individual behaviour; the distribution and retention of intelligence (and other public goods) through a population; and the impacts of communication, social structures, and individual variation on collective behaviour. I also actively research Systems AI–methods for promoting the ease and safety of designing intelligent artefacts. My expertise includes intelligent system integration; action selection; and transparency for real-time AI. Real-time AI includes: robots, smart homes and offices, virtual reality, game characters, and some scientific simulations. My group is making advanced AI easier to build, understand, and control. Contributions include the Behavior Oriented Design development methodology, POSH action selection, and several systems of synthetic emotions.