Horizontal Information Transfer in Embryos
- Research on “hyper embryos” shows that large groups of embryos resist teratogens (development-disrupting agents) better than small groups or individuals.
- Embryos communicate with each other using ATP and calcium signaling, and share information, enabling a group-level response to stress, going beyond individual genomes.
- The only individuals who improve resilience, are those also subject to stressor exposure.
- This has implications for toxicity studies: The toxicity/benefit result is a factor of both group response and intrinsic risk/benefit, meaning the data collected by such studies do not nececarilly represent ground truth about those studies alone.
- Suggests a “hyper embryo” exists as a higher-level entity with its own dynamics and gene expression. Implies development isn’t solely vertical (from parent) but also horizontal (between peers) and cooperative.
Emergent Behavior in Simple Algorithms
- Studied simple sorting algorithms to find minimal conditions for surprising emergent behavior, addressing reductionism vs emergent complexity.
- Injected individual element awareness such that rather than 1 algorithm for whole array, each element ran 1 simple algorithm locally, just seeing neighbours.
- Created self-sorting arrays where each number “wants” to be in the correct position relative to its neighbors.
- Found that even with broken/immobile elements, the algorithms exhibit “delay of gratification” – temporarily getting less sorted to ultimately achieve sorting, without explicit coding for this.
- Created “chimeric” arrays where different elements follow different sorting rules; these show unexpected clustering behavior (“algotypes”) even when not advantageous, and persist longer in cases where sorting tolerance increased, representing ‘free will’ in the model, the cost of ‘physics pulling them apart’, decreased.
- Emergence can exist, surprisingly, in highly-reduced conditions and environments, suggesting that we should not assume human/animal/biological properties only exist when “obvious” based on the typical components known for those organisms (nervous systems).
Discussion on “What Algorithms Want” (Epistemic vs. Ontic)
- Debate on whether emergent properties (like “delay of gratification” in algorithms) are real (ontic) or just projections of our cognitive modes (epistemic).
- Levin argues multiple perspectives exist, and the perspective of goal-directedness can be useful for scientific discovery, even if not “fundamental” in the lowest-level reductionist sense.
- Kastrup contends complexity science often shows that apparent complexity results from simple underlying rules, cautioning against over-attributing cognitive properties, suggesting a lot of observed agency is misatrributed and that what we refer to is purely an epistemic and convenient simplification, instead of ontic truths about reality.
The Problem of “Thingness” and Points of View
- Is there an objectively definable “thing”, or is this purely observer dependent based on current capabilities and understanding of that observer?
- If all “things” (even tables) are assigned their own cognitive agent perspective from observer: observer faces information and combinatoric explosion.
- Analytic idealism frames point of view as arising from dissociation; a living zygote *is* a point of view (distinct from the world), undergoing internal complexification.
- Levin does not accept binary of view/no-view but accepts that living zygote represents a “view”, a “thing”. He thinks it does not only extend to biology: “thingness” a function of degree, that many levels (degrees) of “thingness” may coexist inside bigger “things”.
- Abiogenesis (life from non-life) presents a greater challenge, creating a point of view from non-view entities, unlike fertilization.
Continuum of Perspectives and Sense-Making
- Levin emphasizes a continuum of perspectives, rather than a binary “has it/doesn’t have it” view of consciousness or agency. The size/signifiance of cognitive perspectives can and will differ greatly.
- Rejects idea of *objective* criteria for defining an agent/thing; criteria are relative to an observer’s perspective, and their primary goal, driven internally by self-preservation, is: sense-making.
- “What it’s like to be” questions are about a relationship between two systems; truly becoming another system means losing the original perspective, but instead represent an offset comparison or merge, but the target is retained.
- An explanation helps improve sense-making of the observer to aid effective actions on future, therefore all “useful” and functional descriptions have a quality of *future prediction*, which should not be mistaken as *just* past/present descriptions.
- Levin: the world a giant set of perspectives, growing and shifting, making estimations/assumptions about “other”s in environment.
Implications for Biology and Evolution
- Levin discusses memory remapping, exemplified by caterpillar-butterfly metamorphosis: information is compressed and reinterpreted for a new life context.
- Evolution likely selects for mechanisms of perspective that extract salience from experience, not rigid replication, allowing flexibility/interoperability, hence resilience and ease-of-combination of cells.
- Anthrobots (made from adult human tracheal cells) demonstrate emergent behaviors like self-motility and neural wound healing, despite no evolutionary pressure for this.
- Suggesting capabilities or potentials latent in structure space; exploration through “periscopes” created using perturbational experiments of system.
Speculation on a Platonic Realm
- Suggests a latent “Platonic” space where capabilities exist as forms, instantiated when physical structures align; evolution “searches” for pointers into this space.
- Levin imagines space as interaction/dynamics between entities (similar to how philosophical concepts have shapes).
- These forms are not static, but potentially dynamic, influenced by interacting systems; the “frame rate” of interaction depends on the observer’s capacity.
- Discusses philosophical concepts including L. E. J. Brouwer and intuitionist logic.
Metacognition, Active Inference, and the Physics of First Persons
- Integrated Information Theory (IIT) is consistent with multiple complexes within a living being; subsystems are subsumed, not eliminated.
- Levin suggests active inference (surprise minimization) and Markov blankets may lead to a more refined definition of “life”, potentially including things not currently considered alive, not by explicit components, but by organizational rules and properties of *interactions*.
- “Physics of first-person perspective”: Rewriting physics in terms of predicting one’s own next experience, and connection to actions that can influence that, which aligns with Carl Friston, and Chris Fields’ work, “Active Inference”.