Richard Wilson's Figurative Constraint: A Critical Review

Iconic affordance, anatomical convergence, stacked constraints, pareidolia and the statistical questions left unanswered by the 2026 Fontmaure presentation.

In January 2026, Richard Wilson wrote to me:

I have spent some time reading through your site and blog material

He proceeded to explain that much of what I had presented as pioneering research had already been discussed for more than a century.

Interesting.

On 6 June 2026, Wilson delivered Bear-like Forms at Fontmaure? Testing Figurative Constraint in Neanderthal Lithics at the Prehistoric Society's York conference.

His presentation introduced a six-component assessment of what he calls "iconic affordance", incorporating anatomical convergence, modification, orientation, recurring patterns and material properties.

These are closely related to the methodological questions I have been investigating and publishing for years.

Wilson's familiarity with my work is not speculation. He acknowledged reading it.

So what exactly is new about his latest methodology, what was already established, and where did the individual components originate?

1. Figurative Constraint versus Image Logic and Stacked Constraints

My research distinguishes two related evidential problems.

Tool Logic: Does the physical evidence demonstrate human modification, including coherent flake removals, fracture characteristics and technological organisation?

Image Logic: Do physically grounded features form anatomically coherent, recurring and recognisable representations?

My Stacked Constraints approach examines the combined significance of these observations, rather than relying on any single resemblance or modification.

Now compare this with Wilson's six iconic affordance criteria on slide 8 of his 2026 presentation.

Wilson's 2026 terminology	Closely corresponding elements of my research
Consistency of perceived form	Coherent Image Logic and anatomical consistency
Anatomical convergence	Anatomical topology, proportions and related visual features
Modification–affordance alignment	Technical grounding; flaking and modifications corresponding to figurative features
Orientation stability	Natural presentation, hand-fit and orientation
Patterned/composite complexity	Recurring motifs, combinations of features and assemblage repetition
Material salience	Patina, surface properties, inclusions and other material evidence

These are not identical frameworks, and the criteria do not appear in precisely the same order.

Nevertheless, the correspondence in their analytical functions is substantial.

My May 2017 publication Eoliths, flint tools and figure stones, examined the combined probability of anatomically related features, flake removal, repeated topology and perceived imagery.

I specifically considered the significance of eye-like features occurring alongside correctly positioned mouths, ears, noses and other details.

My 2021 portable rock art article explored visual triggers, partial recognition, multiple imagery and orientation.

My subsequent Flint Flake Mechanics and Stacked Constraints work formalised the physical agency argument, while my Eoliths.org identification methodology brings the mechanical and visual assessments together.

The important similarity is not any single criterion. It is the combination of criteria into an assessment intended to distinguish accidental resemblance from physically supported figuration.

2. The Statistical Problem: Counting Bears Is Not Testing Their Anatomy

Wilson's 2018 Fontmaure paper, Eschewing Bear Tracks, examined 501 lithic specimens (he claims, as there are not 501 different 'bear' items in the paper).

His principal statistical tables classified the perceived imagery and recorded 467 specimens as apparently iconographic.

But where was the systematic statistical examination of the actual anatomical features?

How many specimens possessed recognisable eyes, ears, noses and muzzles?

How frequently did these occur in appropriate anatomical relationships?

How many features coincided with demonstrable flake removals or retouch?

How many specimens displayed corresponding imagery on opposite faces or through rotation?

And how did these combinations compare with a properly selected natural control sample?

These are the questions that test whether combinations of physical and anatomical features provide evidence beyond subjective resemblance.

Wilson was already observing such features in 2018. Indeed, his published reply reported that 86 of 483 modified specimens, approximately 18%, exhibited related bear interpretations following rotation.

Yet his main statistical tables did not systematically present joint frequencies for the anatomical and mechanical features supporting those interpretations.

The comparison also encountered a serious sampling problem.

His Table 1 recorded perceived iconography in 93.2% of modified specimens and 94.4% of the unmodified specimens.

Wilson subsequently acknowledged that the unmodified stones had been selected for their apparent imagery and were therefore not directly comparable.

He reported a further comparison using 100 unmodified stones, but that did not supply the missing feature-by-feature model.

If anatomical convergence and modification alignment are central to the 2026 framework, why were these relationships not comprehensively quantified in the 2018 study?

3. From Cumulative Observations to Probability: Where Is the Actual Test?

Wilson's 2010 paper, Cultural Cobbles or a Load of Cobblers?, already discussed multiple visual cues, possible modification and the cumulative significance of features suggestive of intentionality.

That is an important precedent.

But the paper did not publish a calibrated probability model for combined anatomical and mechanical constraints. Wilson stated that the detailed results of one visual-cue assessment were omitted.

In my 2017 article, I explicitly explored a hypothetical probability problem: a spot and curved feature combining to form an apparent eye, followed by the additional conditions required for anatomically appropriate ears, mouth, nose and other features.

The point was that several coordinated physical conditions present a different chance problem from an isolated resemblance.

That was an illustrative probability argument, not a completed statistical model. A rigorous test would also need to account for dependence between features.

Interestingly, in his 2018 published response, Wilson expressed the ambition to develop an attribute-based system producing realistic probability ratings.

Now, eight years later, his 2026 presentation offers six descriptive criteria.

But where are their empirically established weights, combined probabilities, control distributions or demonstrated likelihood ratios?

Slide 18 still identifies independent observer validation as a future step.

In 2018 he proposed probability ratings. In 2026 he presents a more formal vocabulary. Where are the probabilities?

A graded rubric may be useful, but assigning criteria and calculating their evidential significance are not the same achievement.

4. If It Was Established a Century Ago, Identify the Method

Wilson's January 2026 email dismissed claims of pioneering work by invoking historical archaeological research, including Boucher de Perthes, Rutot, Commont, Boule, Breuil and Bednarik.

In our later exchange, he pointed to Raymond, Hervé and Dharvent.

Brett: Well Richard, there are certainly some rather shocking similarities between your presentation and my own published work on flint flake mechanics, stacked constraints, recurring anatomical patterns, portable rock art and pareidolia. Repackaging these ideas under terms such as "figurative constraint" and "iconic affordance" doesn't make those parallels disappear. Given your prior familiarity with my research, I would like a direct explanation from you as to how you arrived at these remarkably similar arguments and methodologies without any acknowledgement of my work. Are you claiming these ideas were developed entirely independently, or has my research influenced your approach? I would appreciate a clear, specific answer rather than a general dismissal of the similarities. What I find particularly remarkable is the reliance on arguments about repetition, probability and coincidence from someone who appears to struggle with even the basics of statistical reasoning.  

Richard: And this is the point where my limited patience runs dry, I've referenced the original people Raymond, Herve, and Dharwent.

Their historical relevance to the study of eoliths, lithic modification and figure stones is not disputed.

But a historical discussion of suggestive stones does not, by itself, establish the origin of a particular modern analytical framework.

Which specific publications established the combined tests now described as anatomical convergence, modification–affordance alignment, orientation stability and patterned complexity?

Where were their operational definitions and statistical relationships demonstrated?

Wilson has earlier published work of his own, and his 2018 paper includes relevant methodological contributions and commentary from other researchers. Those are legitimate sources that need to be considered.

But citations should explain the development of the actual method, not simply establish that the general subject is old.

There is another relevant fact.

Wilson acknowledged reading my published research in January 2026, before delivering his June presentation.

That establishes familiarity, although it does not establish when he first developed the six criteria or prove that he adopted them from my work.

But where is he saying he had already developed something very similar to my work, and pointing to it? He doesn't, because he hadn't no doubt. Very suspicious isn't it?

Nevertheless, the methodological parallels and that documented familiarity make the question of acknowledgement reasonable.

If the framework was developed independently, its intellectual history should be traceable.

If my research influenced its later formulation, that contribution deserves recognition.

So to conclude, where, precisely, has Richard previously published this particular methodology? Not scattered observations about eyes, ears, flake scars or pareidolia, but the systematic combination of anatomical, mechanical and perceptual constraints he now presents as a formal framework. He has not identified an earlier publication establishing that complete method. Given his acknowledged familiarity with my research, and his insistence that my ideas offered nothing new, the absence of a clear explanation of his methodology's development is conspicuous, to say the least.

5. What Does "Iconic Affordance" Actually Add?

The test of a new scientific method is not the sophistication of its terminology.

It is whether the method produces better, more reproducible results.

Wilson's 2026 presentation proposes an analytical sequence beginning with pareidolia, proceeding through lithic organisation and iconic affordance, and ultimately requiring observer-level testing.

That may be a useful development.

But does it distinguish intentionally modified figurative stones from convincing natural mimics more successfully than the earlier approaches?

Does its scoring reliably separate stronger from weaker examples?

Can independent observers reproduce the assessments?

And does it demonstrate a meaningful cumulative effect when mechanical and anatomical criteria converge?

These questions require data.

The presentation does not provide completed validation establishing those outcomes.

Until then, iconic affordance remains a proposed evaluative framework, not a demonstrated statistical solution to the figure-stone problem.

Conclusion: New Terminology Is Not New Evidence

I have no objection to Richard Wilson improving his methods. I welcome serious attempts to investigate possible prehistoric imagery.

But the correspondence between his latest framework and the questions and methodologies I have publicly developed is considerable.

My own publications establish that I independently developed specific anatomical, topological, physical and probabilistic arguments before his 2018 Fontmaure study.

And his January 2026 email confirms that he had read my work.

The important question is how these lines of research relate to one another.

What is genuinely new in the 2026 framework? Which earlier publications supply its methods? What has been statistically validated? And what acknowledgement, if any, is due to contemporary research Wilson knew about?

I raised the issue directly. The explanation I received relied on historical authorities rather than a specific comparison of the modern methodologies.

That leaves the question unresolved.

There is an irony in demanding rigorous evidence for the origins of physical features while leaving the intellectual development of the interpretative method insufficiently explained.

I recognise that Wilson published on related subjects in 2010 and 2018. However, there is a significant distinction between discussing possible figure stones and developing targeted analytical methodologies and structured evidential tests intended to distinguish genuine artefacts and intentional figuration from natural coincidence and pareidolia. My published research demonstrates a sustained history of constructing precisely these kinds of proof structures, combining flint fracture mechanics, anatomical topology, patina logic, cumulative probability, Image Logic and Stacked Constraints. By contrast, I have not identified an equivalent, fully articulated and systematically applied methodology in Wilson's earlier published work. His 2026 framework represents a notable move towards the very approach I have been developing and publishing for years. Given his documented familiarity with that research, the absence of acknowledgement warrants a specific explanation, not merely references to earlier discussions of figure stones.

So, let me get this straight. Richard tells me my research offers nothing new because it was all done over a century ago, yet months later presents a strikingly similar methodology under the shiny new labels of “figurative constraint” and “iconic affordance”. Apparently, these ideas are century-old irrelevancies when I publish them, but worthy of a conference presentation when Richard does. Perhaps he could spare us the historical name-dropping and simply show us where this supposedly century-old methodology actually exists? Not the general ideas, Richard. The method.

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This is a critical review of published methodologies, statistical arguments and documented correspondence. Similarity between approaches does not, by itself, prove plagiarism or intentional misattribution.

Sources and methodological comparisons

My published research

• Eoliths: Flint Tools and Figure Stones (2017)

• Portable Rock Art and Figure Stones (2021)

• Flint Flake Mechanics and Stacked Constraints (2025)

• Image Logic and Portable Rock Art Identification Feb (2026) 

Publications examined in this review

• Wilson, R. (2010). Cultural Cobbles or a Load of Cobblers?

• Wilson, R. (2018). Eschewing Bear Tracks: Fallacies, Figure-Stones and Fontmaure.

• Wilson, R. (2026). Bear-like Forms at Fontmaure? Testing Figurative Constraint in Neanderthal Lithics. Prehistoric Society conference, University of York.

References to Wilson's publications are included for scholarly identification and verification, not as endorsements of their conclusions.

A Peer Review of Richard Wilson: Bearly Figurable (and “BULLSHIT”)

Key terms: Figure Stones, Richard Wilson, Erschwing bear tracks, bear effigy stone, portable rock art

A recent email from Richard has prompted this post. In it, he calls for “rigour,” insists on tighter evidential standards, and complains about citation gaps — while also implying that “much of this was established decades ago” and that what I’m doing is simply re-running old ground without the proper intellectual framework.

My view is that this is utter hypocrisy, and it’s hard not to notice the timing. These objections could have been raised constructively 14 years ago, when my material first went public. Instead they arrive now, right as the work is presented in a far more coherent way — through my new site, the Eolith Atlas structure, the portable rock art gallery, the organised material, the comparisons, and the overall clarity of the case. In other words: the “rigour” lecture looks less like a neutral methodological concern, and more like a reaction to the project becoming harder to casually dismiss.

If “the standards” and “the established work” are really the point, then the obvious question is simple: where are the citations, and where is the established framework, specifically, for figurative lithics and figure-stones — and why does it get invoked as a rhetorical shield rather than demonstrated in detail?

Richard Wilson's Scientific Rigor: “You seriously think that this is worked by hominins? This just shows that you do not understand flint fracture mechanics or geology.” No, Richard — it shows a double standard: dismissing visible agency and possible ochre here, while later demanding “rigour” from me, but not in your own paper.

In 2013 I posted my “face effigy” stone with photos and a plain-language description of what I could see: deliberate-looking modification/figuration and iron-oxide staining consistent with applied ochre. Richard’s immediate reaction was outright trolling and a competence attack: “You seriously think that this is worked by hominins? This just shows that you do not understand flint fracture mechanics or geology.” Fast-forward to his recent emails and he’s suddenly posturing about “scientific rigor” and “standards,” yet the only “rigor” he applied to my 2013 piece was dismissal-by-insult, even though the photo shows clear evidence of cognition/agency cues and the red/iron-oxide emphasis in a way that is at least legitimate to flag as possible pigment. What makes it worse is the double standard: even Alan Day — despite disagreeing with me on plenty — accepts that 2013 object as an artefact, while Richard’s own paper is happy to call other people’s examples “figure-stones” (i.e., artefacts rather than geofacts) without demanding the same explicit evidential package from him or those original finders that he retrospectively demands from me.

A Bear Faced Pie?

In Richard Wilson’s Erschwing “bear tracks” paper (2018), he suddenly attempts a “statistical proof” approach to figuration — the very kind of move he’d already sneered at when it came from me. About seven months earlier, I emailed him saying I’d worked out a methodology for statistically testing figuration claims, and I sent him the link; his reply wasn’t a critique, it was pictorial and the only reasonable reading was “BULLSHIT.” Yet later that same year he’s doing the same basic thing in print — badly — and without so much as acknowledging where the idea had been put to him first. If this kind of statistical control-test framing was genuinely “established decades ago,” he should be able to cite who established it in the specific context of figurative lithics; and if it wasn’t established, then the omission is simple: he used the method when it suited him, while dismissing it as “bullshit” when I proposed it.

Richard Wilson’s “bear” test is basically this: he compares two sets of stones — (1) a set treated as “figure-stones” with recognisable bear-like forms, and (2) a “randomly selected” control set of naturally fractured rocks — and argues that if bear-like “iconography” appears far more often in (1) than (2), that supports agency/figuration rather than chance fracture. He sells it as “bear-selected stones vs random stones”.

Even at face value it’s circular: picking stones that “look like bears” and contrasting them with random stones only proves you picked stones you think look like bears — it doesn’t demonstrate sculpting or intention.

Mathijs Vos highlights the fatal contradiction using Wilson’s own stated “required” evidence:

“Now, careful examination of Table 1 shows that the author detected iconography in 17 out of 18 unmodified stones. That means the author finds 94.4% of iconographic items in a sample of rocks fractured only by natural forces… case closed by the author’s own criteria.”

So the “control” does the opposite of what it’s meant to do: if the natural/unmodified set produces “iconography” at essentially the same (or higher) rate as the “modified” set, then by Wilson’s own stated logic the result isn’t meaningful — it undercuts the claim rather than proving it.

Worse, after that criticism, the story shifts: the supposed “random” rocks are now effectively treated as bear-like too, and the comparison drifts from “selected bears vs random rocks” toward “bears vs bears.” That’s changing the buckets after the fact — which reeks either of total incompetence or a deliberate attempt to protect the headline claim.

Because this is such a small niche, it’s hard not to notice how “standards” language can function like club membership: some claims are waved through as “figure-stones,” while others are met with trolling, dismissal, and zero credit — even when the methodology later reappears in print without citation.

If Richard is operating within IFRAO-adjacent circles (as far as I know), it’s fair to ask whether this is a network problem: a closed loop that amplifies certain voices, shields insiders from the scrutiny they demand of outsiders, and quietly erases prior innovations. If that’s wrong, then prove it the scientific way: publish clear thresholds, run blinded tests, cite origins of methods, and stop substituting status for analysis. I wonder if Alan Day and James Harrod are members of the IFRAO?

What I Was Actually Saying in 2012

When Revelation in Stone went live in 2012, the background noise online was strangely thin. The wikis and popular encyclopaedias weren’t confidently talking about “Palaeolithic elephant art”, and for good reason: it was not proven in any robust, settled way. What I was doing felt different in kind. I wasn’t waving a single curiosity and calling it a masterpiece. I was laying out a small, coherent run of objects from one tight patch of ground, with the same white patina and the same chalkland context, and saying: look at this as an assemblage, not as a one-off. Not only that, I was saying this can be seen world wide, it's much bigger than what I have here.

Some of those pieces were plainly tools first. You could see the working edges, the functional geometry, the scars you expect when a flint has been driven, held, and used. And yet, within that tool language, there were faces, animal forms, and those ambiguous optical flips I’d started calling poly-iconography. Not a hundred “maybe” stones, but at least ten that held their ground under a photograph and still held it when you handled them. That mattered, because a repeated pattern in a consistent group is a different kind of claim than a single pleasing resemblance.

The reaction split fast. A few of the small number of people who were active in figure-stones or portable rock art at the time were immediately hostile. But Ursula Benekindorf stood out because she did what honest workers do: she looked, and she acknowledged that what I had was not random, and that in places it was clearer and more complex than her own finds. That sort of response does not require agreement with every interpretation. It just requires integrity.

What still grates is this: if there really was a paper by “Big Bob Cahunas”, as Richard later insisted, setting out the same ground decades earlier, then why wasn’t it simply put in my hands? Not as a weapon, not as a gotcha, but as basic scholarly decency. Here is the precedent, here is the framework, here are the arguments, now test your material against it. Instead, the implication was that I was reinventing something I should already have known, while no one actually produced the supposed map.

If that paper existed in a form that genuinely matched what I was seeing and publishing, then yes, it could have saved me years of lonely work and the need to build a whole website just to make the case visible. But that is precisely the point: I did build it, because the objects were there, and because the mainstream summaries were not doing the careful, assemblage-level looking that this subject demands. The stones forced the issue. The least others could have done was send the paper and argue from evidence, rather than from insinuation.

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FAQ

What is a “bear effigy stone”?

It’s a practical label for the claimed bear-like figure-stones discussed in the “bear tracks” argument, and a useful term for this debate.

Why is the “bear” identification controversial?

Because without fixed, objective criteria, “bear-likeness” is subjective pattern-spotting — and subjective pattern-spotting is exactly what a control test is supposed to guard against.

What’s the core issue raised by Vos?

That Wilson’s own table implies the unmodified/natural set produces “iconography” at a rate that defeats the central claim on Wilson’s own stated terms.