The Conventional Wisdom

In the AI Story

Galbraith introduced the concept in The Affluent Society (1958) as a diagnostic instrument. The conventional wisdom is not common sense. Common sense is the residue of experience. The conventional wisdom is the residue of social approval. A belief that makes powerful people uneasy will be scrutinized with a ferocity that a belief flattering to the powerful will never face. This asymmetry is not a conspiracy; it is a structural tendency operating through entirely unconscious mechanisms, and it operates with particular efficiency in periods of technological upheaval when the need for reassurance is acute.

The AI version of the conventional wisdom acknowledges genuine capability expansion — the developer in Lagos, the Trivandrum training's twenty-fold multiplier, the collapse of the imagination-to-artifact ratio. These facts are real. Dismissing them as hype would be as lazy as accepting them as the whole story. Galbraith's method was to accept the comfortable truth, acknowledge its evidence, and then ask the question the comfortable truth was designed to make unnecessary: who controls the infrastructure upon which this democratization depends?

The pattern is consistent across technological transitions. Television was supposed to democratize information; the economics of broadcast concentrated control in three networks. The personal computer was supposed to empower individuals; the economics of operating systems concentrated control in Microsoft and a handful of firms. The internet was supposed to flatten hierarchies; the economics of search and cloud infrastructure concentrated control in five companies. In each case, the initial democratization was real. In each case, the long-term trajectory was concentration. The conventional wisdom focused on the democratization and averted its gaze from the concentration.

Galbraith observed that the conventional wisdom is "not combated with new arguments or better evidence but by the course of events." The beliefs sustaining the pre-Depression economy were not argued away by superior economics; they were demolished by the Depression itself. The conventional wisdom about AI will not be refuted by books like this one. It will be refuted, if at all, by the moment when the concentration of power produces consequences visible enough to penetrate the comfortable narrative.

Origin

The concept first appears in Chapter 2 of The Affluent Society, where Galbraith defined it with characteristic directness: the conventional wisdom is what is acceptable, predictable, and comfortable to say in public. He introduced the term partly to provide a vocabulary for the specific intellectual pathology he was diagnosing — a pathology for which the existing language (orthodoxy, dogma, received opinion) was insufficiently precise because each of those terms implied a coherent body of doctrine. The conventional wisdom is not coherent. It is the aggregate of beliefs that happen to be socially comfortable at a given moment, and its composition shifts as the structure of social approval shifts.

Key Ideas

Social acceptability as selection pressure. Beliefs survive not because evidence supports them but because articulating them costs nothing and contradicting them costs everything in specific institutional settings.

The partial-truth trap. The most durable conventional wisdom is the kind that contains real evidence at its surface; the surface truth makes the structural falsehood nearly impossible to see.

Technology transitions as case studies. Every major information technology has produced an initial democratization followed by a concentration, and the conventional wisdom has celebrated the first while ignoring the second.

Events, not arguments. The conventional wisdom cannot be refuted by better analysis because analysis is not what sustains it; only the course of events produces the conditions under which the comfortable fiction becomes untenable.