The Open Philanthropy Project spoke with Dr. Adam Marblestone of the MIT Synthetic Neurobiology Group and Dr. Eric Drexler of the Future of Humanity Institute (FHI) as part of its investigation into Atomically Precise Manufacturing (APM). Conversation topics included a recent workshop on molecular 3D printing, the prospects of the ideas discussed there contributing to the eventual development of APM, resources needed to create a self-assembling 3D printer, and funding for work in this field.