Enabling Physical AI through Biological Principles

Abstract: The introduction of LLMs has significantly expanded global demand for computing; addressing this growing demand requires novel approaches that introduce new capabilities while addressing extant needs. Although inspiration from biological systems served as the foundation on which modern AI was developed, many modern advances have been made without clear parallels to biological computing. As a result, the ability of techniques inspired by "natural intelligence" (NI) to inflect modern AI systems may be questioned. However, by analyzing remaining disparities between AI and NI, we argue that further biological inspiration is indeed necessary to diversify the capabilities of artificial systems and enable them to succeed in real-world environments and adapt to niche applications. To elucidate which NI mechanisms can contribute toward this goal, we review and compare elements of biological and artificial computing systems, emphasizing areas of NI that have not yet been effectively captured by AI. We then suggest areas of opportunity for NI-inspired mechanisms that can inflect AI hardware and software.