Turner rejects this model at its foundations. Expert authority is neither absolute nor hidden, he argues. Many claims to expertise simply fail to gain acceptance. The public decides whether to honor expert conclusions as neutral fact, and that decision, however imperfect, is genuinely theirs. Experts must earn their legitimation through performance and testimony. Turner's comparison to a plumber is deliberately mundane: judging whether a plumber fixed the pipe is within the capacity of ordinary people, and judging whether an expert's claims hold up works the same way. The Habermasian picture of a helpless public steered by invisible technocrats dissolves once you see that expert authority is a contested status, not a guaranteed one.
The deeper target of Turner's critique is the ideal speech situation itself. Habermas proposes this as a standard for undistorted communication, a hypothetical state of discourse free of constraint, where genuine consensus becomes possible. Turner finds the concept of doubtful coherence. The standard for what counts as successful discourse is itself conditioned by the speech situation one inhabits. A person might sincerely believe they have escaped distortion when they have not, and nothing inside the language game will correct them. Habermas compares the emancipatory process to psychoanalysis, where the patient recognizes success by the continuation of a self-formative process. But Turner asks how one distinguishes that process from paranoia, from ideological conformity, from the kind of group consensus that satisfies neurotic needs rather than truth-seeking ones. There is no reliable internal test.
Turner also challenges the Habermasian account of consensus by turning to Wittgenstein. Habermas argues that a language game rests on a background consensus about truth and norms, a consensus that must be open to discursive justification if it is to count as genuine. Wittgenstein, as Turner reads him through Rush Rhees, sees no such foundation outside the game itself. Consensus exists in the common use of rules, not in something beneath or behind them. You can explain arithmetic or the standards of French cooking, you can show someone how it works until they catch on, but you cannot justify these things in the strong sense Habermas demands, and demanding that justification is, Turner argues, of doubtful coherence.
What follows from this is a broader skepticism about expert consensus that Habermas does not share. Expert opinion, Turner notes, often obeys the laws of fashion rather than the laws of progress. Professional communities are routinely wrong, sometimes for long periods, and the authority they command does not protect them from error. This puts a genuine burden on experts: not merely to get the internal logic of their claims right, but to consider the consequences when they are wrong while still commanding deference. The problem with experts, in Turner's account, is not that they secretly control everything, but that they can be mistaken while still appearing authoritative. That is a real problem for democratic life, but it calls for skepticism and accountability rather than the utopian remedy of ideal speech. Turner replaces Habermas's tragic picture of colonized victims with something more workable. Democracy survives not by aspiring to an ideal of undistorted communication that no one can verify or reach, but by the messy, fallible, ordinary process of deciding which experts to trust, holding them to account when they fail, and recognizing that this judgment, however imperfect, already belongs to the public. The standard is not higher reason. It is the same standard you use for a plumber.