 Abiotic resource depletion is a controversial topic in life cycle assessment, LCA, with multiple definitions and approaches to measuring its impact. In this paper, we review the current state of the art in abiotic resource depletion, including the parameters used to measure it, the data sources available, and the latest updates to the models. We then suggest several new directions for research on abiotic resource depletion, including redefining the depletion problem as a dilution problem, taking into account both the reserves in the environment and the economy.