From Molecules to Metabolism — VIII. When Chemistry Became a History

We began with molecules.

Not with life.

The question was how molecular relations could become organised enough for something like metabolism to emerge.

One reaction became a network.

The network formed cycles.

Cycles required an inside.

The boundary became part of the chemistry.

Exchange became selective.

Consequences fed back into processes.

Some organisations persisted more effectively than others.

And persistence itself began to matter.

The sequence now looks something like this:

reaction → network → cycle → boundary → regulation → feedback → self-maintenance → history.

At no point did chemistry suddenly acquire a mysterious new ingredient.

What changed was the organisation of relations.

Molecules began participating in processes whose consequences helped sustain the conditions for further processes.

The system became involved in its own continuation.

And once different organisations persisted differently, the past began to matter to the future.

A surviving organisation became the condition from which further organisation could emerge.

Chemistry had acquired a history.

That does not tell us exactly how the first living system arose.

It does something more modest — and perhaps more interesting.

It shows why the origin of life need not be imagined as the sudden appearance of a finished organism.

There may instead be a gradual transformation in which chemistry becomes increasingly capable of maintaining, regulating, and reproducing the conditions of its own continuation.

At some point, the distinction between chemistry and biology becomes difficult to draw sharply.

Not because chemistry stops.

But because chemistry has become organised in a new way.

Life may begin, then, not with a particular molecule.

Not even with a particular reaction.

But with a history of organisation in which chemistry becomes capable of making its own continuation matter.