Five Key Insights Into How Brains Work, From Octopuses to Organoids

Modern neuroscience reveals that brains, in all their varied forms, function essentially as inference engines that make predictions about the future. This perspective spans a surprising range of biological systems, from the distributed multi-brain architecture of octopuses to tiny lab-grown brain organoids. Researchers highlight five core principles that underpin how brains process information and navigate the world. Understanding these mechanisms sheds light on why biological intelligence, including human cognition, is inherently prone to error and uncertainty.