Organisms Are Populations and Populations Are Organisms
Taleb describes organisms and larger biological systems as nested populations. A process that removes or harms some components may benefit a higher level, but those benefits and costs fall on different parts of the system and are not guaranteed.
THE IDEA
Organisms Are Populations and Populations Are Organisms
The idea of viewing things in terms of populations, not individuals, with possible benefits to a population stemming from losses among some of its members, came to me from the works on antifragility by the physicist turned geneticist Antoine Danchin.3 For him, analysis needs to accommodate the fact that an organism is not something isolated and stand-alone: there are layering and hierarchies. If you view things in terms of populations, you must transcend the terms “hormesis” and “Mithridatization” as a characterization of antifragility. Why? To rephrase the argument made earlier, hormesis is a metaphor for direct antifragility, when an organism directly benefits from harm; with evolution, something hierarchically superior to that organism benefits from the damage. From the outside, it looks like there is hormesis, but from the inside, there are winners and losers.
How does this layering operate? A tree has many branches, and these look like small trees; further, these large branches have many more smaller branches that sort of look like even smaller trees. This is a manifestation of what is called fractal self-similarity, a vision by the mathematician Benoît Mandelbrot. There is a similar hierarchy in things and we just see the top layer from the outside. The cell has a population of intracellular molecules; in turn the organism has a population of cells, and the species has a population of organisms. A strengthening mechanism for the species comes at the expense of some organisms; in turn the organism strengthens at the expense of some cells, all the way down and all the way up as well.
Taleb proposes that some responses to stress could be understood through selection or turnover among components within an organism. He connects this idea with autophagy, the recycling of cellular material, and attributes the broader interpretation to Danchin. Autophagy is not simply the removal of weak proteins in an internal evolutionary contest.
The general question is how processes at one level affect another. A benefit to an organism or population does not follow automatically from damage to its components, and this analogy does not establish that poison exposure or starvation is beneficial.
When to use it
Understanding why moderate exercise (which damages muscle fibers) leads to stronger muscles through selective repair and growth.
When evaluating organizational restructuring, distinguish claimed benefits to the organization from costs to employees and check whether the proposed changes actually improve performance.
Analyzing how economic shocks affect different firms, workers and consumers without assuming that a recession necessarily improves the economy.
Analyzing antibiotic resistance: resistant bacteria can become more common when treatment removes susceptible bacteria. A benefit to that bacterial population is a harm to the patient.
FROM THEORY TO EVERYDAY LIFE
In practice
Mithridatization – Poison Exposure
Taleb uses exposure to a poisonous substance as a proposed illustration of selection among components within an organism. The passage does not establish that this mechanism explains a particular response or that exposure is beneficial.
Starvation and Autophagy
Autophagy is cellular recycling. Taleb interprets it through the metaphor of selection among components, but it is not simply a contest in which the weakest proteins are always removed first, and the analogy does not establish a benefit from starvation.
Fractal Self-Similarity in Trees
A tree’s branches resemble smaller trees, and its twigs resemble even smaller trees—a fractal pattern that mirrors the nested population structure of biological systems (cells, organisms, species).
A MOMENT TO REFLECT
Put it to work.
How does viewing your own body as a population of cells change your understanding of health, stress, and recovery?
In what other domains (e.g., economics, ecosystems, organizations) can you observe fractal self-similarity and hierarchical selection?
When a system appears to benefit from losses among its members, who bears those losses, and what evidence shows a benefit to the higher level?
Often confused with
References
- Works on Antifragility — Antoine Danchin
- Fractal Geometry of Nature — Benoît Mandelbrot (1982)
CONTINUE THE CONVERSATION
Source texts
- Antifragile (Nassim Nicholas Taleb)