We all differ in our ability to form and retrieve lasting long-term memories. Some of these differences are a consequence of how we decide to process information, while other sources of individual differences may be less under our control (i.e., due to inherent differences in neural resources or abilities; e.g., Wig et al. 2008 Proc Natl Acad Sci U S A). A continuous theme throughout much of the CNL’s research program is to try to identify and characterize the sources of individual differences across the adult lifespan (e.g., Chan et al. 2014 PNAS).