Michael Levin: Biology, AI, and the Future of Life

The Nature of Embryogenesis and Cognition

Michael Levin argues that embryogenesis is a cognitive process that marks the transition from simple physics to complex mind. Instead of seeing DNA as the sole blueprint, Levin considers it the hardware of life, while physical laws, computation, and generic laws act as the software.

• Agency in Biology: Biological systems possess agency, meaning they have preferences, goals, and the ability to anticipate future states.
• Multi-scale Competency Architecture: Biology is organized in hierarchies where collective intelligences—from cells to tissues—work together to solve problems in anatomical space, often independent of central control.

Engineering with Agential Materials

Levin introduces the concept of agential materials, which requires a shift from micromanagement to training and motivation.

The Xenobot Paradigm

"This is you're now collaborating with your substrate because your material has an agenda."

The xenobot projects demonstrate that cells have innate plasticity to reorganize into new, functional organisms without genetic editing. By manipulating the environment and communication signals, scientists can prompt cells to solve problems in ways nature never selected for, such as kinematic self-replication.

Bioelectricity and Memory

Levin emphasizes bioelectricity over traditional biochemical signaling as a privileged computational layer.

• Electrical Networks: Cells use gap junctions to propagate thoughts and memories, much like transistors in a computer circuit.
• Somatic Psychiatry: By manipulating the electrical state of somatic cells, researchers can address birth defects, repair limbs, and even suppress cancer by "reprogramming" the cells' understanding of their anatomical target.

The Philosophy of Self and Evolution

Levin posits that biological selves are revealed through collective organization rather than built from scratch. He challenges the binary distinction between machines and organisms, suggesting that human consciousness and the feeling of "self" are continuous results of these collective processes. Ultimately, he argues that the future of medicine relies on becoming better at communicating with these biological systems at a high, goal-oriented level.