AbstractBackgroundThe explosion caused by the fusion of quantitative genetics and molecular genetics will transform behavioural genetic research in child and adolescent psychology and psychiatry.MethodsAlthough the fallout has not yet settled, the goal of this paper is to predict the next 10 years of research in what could be calledbehavioural genomics.ResultsI focus on three research directions: the genetic architecture of psychopathology, causal modelling of gene‐environment interplay, and the use of DNA as an early warning system.ConclusionEventually, whole‐genome sequencing will be available for all newborns, which means that behavioural genomics could potentially be applied ubiquitously in research and clinical practice.