Why APS Is Not Holism

Holism and the Appeal of Wholes

Holism has long occupied an important place within biological thought. From the organismic biology of the early twentieth century to contemporary systems approaches, holistic traditions have argued that living systems cannot be adequately understood by analysing isolated components alone. Thinkers such as Jan Smuts, Ludwig von Bertalanffy, and later systems theorists emphasised that organisms exhibit forms of organisation whose properties emerge from the coordinated activity of the whole rather than from the independent behaviour of parts.

In this respect, holism identifies a genuine feature of living systems. Organisms are organised entities whose activities depend upon relations among components, environmental interactions, developmental histories, and processes operating across multiple temporal and spatial scales.

APS therefore agrees with holism that biological explanation cannot be reduced to the analysis of isolated parts.

However, APS rejects the further claim that appeals to wholes, organismic unity, or holistic properties themselves constitute explanations. Recognising that living systems exhibit organised wholeness does not yet explain how that wholeness is produced, maintained, repaired, or preserved.

The existence of a whole does not explain how that whole persists.

The central explanatory question therefore remains:

How does a living system continuously maintain the organisation that allows it to remain a living system?

APS answers this question through viability-oriented organised persistence rather than through appeals to wholeness itself.

Why APS Rejects the Reductionism–Holism Opposition

Biological explanation is often presented as a choice between reductionism and holism.

Reductionism seeks explanation in constituent parts and lower-level mechanisms.

Holism seeks explanation in higher-level organisational wholes.

APS argues that this opposition is largely misleading.

Living systems are neither collections of independent components nor mysterious unified wholes.

They are organised processes whose persistence depends upon interactions among components, constraints, environments, developmental trajectories, and regulatory activities operating across scales.

The primary explanatory target is therefore not parts alone or wholes alone but the organisation through which persistence is maintained.

APS therefore relocates explanation away from the reductionism–holism debate and toward organised persistence itself. Living systems are understood neither as collections of independently functioning components nor as explanatory wholes. They are continuity-maintaining organisations whose persistence depends upon the coordinated activity of processes operating across scales and through time.

This continuity architecture provides the primary explanatory framework within APS.

Figure: APS rejects both atomistic reductionism and explanatory holism. Explanation is centred on the organisation through which living systems sustain viability across time.

Continuity Is Not Wholeness

Holistic approaches often treat the organism as a unified whole whose identity remains constant through time.

APS instead emphasises continuity.

Living systems persist despite continuous material turnover, developmental transformation, ecological interaction, and organisational reconfiguration.

Cells are replaced.

Proteins are degraded and synthesised.

Tissues remodel.

Developmental states change.

Environmental conditions fluctuate.

Yet the organism remains recognisably the same biological individual.

This persistence cannot be explained by appealing to the existence of a whole.

Rather, it depends upon continuity-preserving organisation.

APS therefore interprets biological identity as organised continuity rather than static wholeness.

What persists is not a fixed structure but an ongoing process of viability maintenance.

Processual Individuality Is Not Organismic Essence

Traditional holism sometimes treats organisms as possessing a distinctive organismic essence that unifies the whole.

APS rejects essentialist interpretations of biological individuality.

Biological individuals are processual entities.

Their identity is constituted through ongoing organisational continuity rather than immutable material composition or intrinsic essence.

Organisms remain themselves because they continuously reproduce the conditions of their own persistence.

Individuality is therefore realised through organised activity rather than grounded in static substance.

This processual conception of individuality explains both biological stability and biological change.

Development, adaptation, repair, and evolution become intelligible as transformations occurring within continuity-preserving organisational systems.

Constraint-Closure Is Not Mystical Unity

Holistic theories sometimes invoke forms of unity that appear difficult to reconcile with scientific explanation.

APS avoids this difficulty through the concept of constraint-closure.

Constraint-closure refers to networks of mutually supporting constraints whose activities contribute to maintaining the conditions required for their own continued operation.

Constraint-closure does not invoke hidden forces, vital powers, or irreducible organismic substances.

It identifies empirically investigable organisational relations.

The explanatory significance of constraint-closure lies not in its status as a whole but in its role in sustaining viability-oriented organisation.

Organisation is therefore scientifically tractable without being reducible to isolated mechanisms.

Figure: Constraint-closure is neither reductionist nor mystical. It describes the organisational relationships through which biological systems maintain themselves.

Organisation Is Real Without Being Holistic

One reason holistic thinking remains attractive is that living systems genuinely exhibit organisational properties that cannot be identified with any single component. Biological organisation is real.

APS therefore rejects the reductionist claim that organisation is merely a convenient description of lower-level mechanisms.

However, APS equally rejects the holistic conclusion that the reality of organisation implies that wholes themselves are explanatory entities.

Organisation matters because it contributes to the maintenance of viability-oriented persistence. Its reality derives from its causal and explanatory role within living systems rather than from the existence of an autonomous organismic whole.

This position is captured by APS organisational realism.

Organisational realism recognises that biological organisation constitutes a genuine explanatory feature of living systems while avoiding the holistic assumption that explanation ultimately terminates in the whole itself.

Organisation is real because persistence is real. Persistence is not an abstract property but an ongoing organisational achievement.

What requires explanation is not the existence of a whole but the organised processes through which continuity is maintained.

Mechanisms Within Organised Persistence

APS rejects the claim that mechanisms are sufficient explanations of life.

It equally rejects the claim that mechanisms are irrelevant.

Mechanisms matter because biological organisation is realised through concrete causal processes.

Metabolic pathways, developmental processes, signalling systems, physiological regulation, and ecological interactions all contribute to persistence.

However, mechanisms become biologically meaningful only within the broader organisational context that gives them viability-related significance.

The APS position is therefore neither mechanistic reductionism nor anti-mechanistic holism.

Mechanisms are components of organised persistence.

Their explanatory role depends upon the organisational systems within which they operate.

Teleology Without Organicism

Many holistic traditions connect biological organisation with teleology.

APS agrees that biological systems exhibit goal-directed organisation.

However, this goal-directedness does not require organismic essences, cosmic purposes, or holistic forces.

Teleology emerges from viability-oriented organisation itself.

Living systems act in ways that preserve, repair, regulate, and reproduce the conditions necessary for continued persistence.

Purpose therefore reflects organisational requirements rather than external design or metaphysical destiny.

APS naturalises teleology by grounding it in continuity-preserving activity.

Explanatory Priority Is Not Ontological Priority

Holistic approaches often move from the observation that organisation is explanatorily important to the conclusion that wholes possess a special ontological status.

APS rejects this inference.

The explanatory importance of organisation does not imply that organisation is ontologically fundamental in a holistic sense.

APS distinguishes explanatory priority from ontological priority.

Explanatory priority concerns what must be understood in order to explain biological phenomena. Ontological priority concerns what is most fundamentally real.

Biological explanation requires understanding viability-oriented organisation because persistence depends upon organisational relations. Yet this does not imply that wholes exist independently of the processes and interactions through which they are constituted.

Organisation is explanatorily indispensable without being ontologically mysterious.

APS therefore avoids both reductionism and holism. Biological systems are not explained exclusively through their parts, nor through appeals to wholes. They are explained through the continuity-preserving organisation that links components, processes, constraints, and environments into viable systems.

The APS Position

APS accepts several insights traditionally associated with holism:

• biological systems cannot be understood through isolated parts alone;
• organisation matters;
• relations matter;
• context matters;
• development matters;
• persistence depends upon interactions across scales and through time.

However, APS rejects explanatory holism.

Biology is not explained by invoking wholes.

It is explained by identifying how living systems maintain viability-oriented organisation through time.

The explanatory target is neither the part nor the whole.

It is organised persistence.

APS therefore replaces the reductionism–holism opposition with an organisational framework centred on continuity, viability, constraint-closure, and persistence.

Conclusion

Holism correctly recognised that life cannot be explained through isolated components alone.

APS accepts this insight while rejecting the idea that appeals to wholes provide explanations in themselves.

Living systems are not mysterious totalities.

Nor are they reducible collections of parts.

They are viability-oriented organisations whose continuity is maintained through organised persistence across time.

Biological explanation therefore requires understanding how persistence is achieved through continuity-preserving organisation.

APS rejects both reductionism and holism as explanatory endpoints.

The explanatory target is neither the part nor the whole.

It is organised persistence.

Within this framework:

• mechanisms matter;
• components matter;
• relations matter;
• constraints matter;
• scales matter;
• and persistence matters.

Biology becomes intelligible not through isolated parts alone, nor through abstract wholes alone, but through the organised processes through which living systems continuously maintain their own viability and continuity.