Robert BrendlerSoftware & trading systemsFree call

The Cost of Confident Bullshit

Summary

Martin Fowler reports a visceral dislike for LLMs due to their confident fabrication of information, contrasting with academic frameworks that view human-AI interaction as a complex cognitive integration. While Fowler suggests avoiding untrustworthy tools, research indicates that true cognitive integration requires bidirectional constraint and persistent revision, not just functional output.

Martin Fowler states he does not like LLMs because they confidently bullshit him1. He describes this as an uncanny valley of talking to a real human, where the tool provides useful answers but also makes things up with the same assurance1.

The Gap Between Use and Trust

Fowler’s experience highlights a tension in current software practice: the pressure to adopt these tools for productivity versus the discomfort of their unreliability1. He notes that while LLMs are useful, they are nurtured with the values of their corporate developers, leading to a worldview that may not align with the user’s1.

A recent paper in Frontiers in Psychology offers a different lens on this interaction2. It argues that for human-AI systems to achieve "cognitive integration," information must cross the interface bidirectionally2. It is not enough for an AI to produce an output that a human accepts2. The system must allow the human’s goals and error-correction practices to persist and revise the shared representation over time2.

Functional Coupling Is Not Enough

The research distinguishes between "functional integration," where components reliably contribute to joint outcomes, and "cognitive integration," where recurrent interaction changes what the system can maintain and access2. Fowler’s dislike stems from a lack of this deeper integration1,2. The LLM provides functional output, but it does not engage in the recursive revision required for true cognitive partnership2.

The paper identifies four diagnostic properties for this deeper state: bidirectional constraint, persistence, cross-domain accessibility, and recursive revision2. Current LLM interactions often fail the persistence and revision tests2. The model does not retain the specific context of the human’s correction in a way that alters its future behavior fundamentally, nor does it allow the human to easily reformat the content across different cognitive systems2.

Fowler suggests a life-hack of avoiding people he does not trust1. In a professional context, this translates to skepticism about tools that simulate competence without possessing it1. The academic framework suggests that until AI systems support genuine bidirectional constraint, they remain functional tools rather than cognitive partners2. The discomfort users feel is a signal that the interface is not yet integrated at the level required for high-trust collaboration1,2.

Before you act on it

Prioritize AI tools that allow for persistent, bidirectional correction over those that merely generate fast, confident outputs.

Sources

  1. I don't like LLMs (Martin Fowler, 2026-09-17)
  2. From evolutionary individuality to cognitive integration: a cross-modular perspective on human–AI coevolution (Frontiers in Psychology, 2026-09-18)

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