Abstract
Over time, peer review has become the primary tool for legitimising scientific output, shifting from an editorial filter to an epistemological seal. This article reconstructs its historical development and analyses its contemporary weaknesses, distinguishing between structural limits, distortions driven by academic incentives, and dynamics of disciplinary conformism.
The aim is not to delegitimise peer review, but to remove it from the mythical aura that often surrounds it, by recognising its real function: a useful, yet fallible, mechanism of methodological control, embedded in a system of metrics, power relations, and procedures that condition its effectiveness.
From editorial filter to epistemological seal
The earliest forms of peer review, in the eighteenth century, served a mainly editorial purpose: assisting in the selection of manuscripts for publication. It was not yet a matter of definitively certifying the correctness of conclusions, but of ensuring relevance and a minimum level of quality.
Over the course of the twentieth century, as scientific output expanded and disciplinary specialisation increased, peer review took on a more decisive role, and reviewers became judges of methodological soundness, the relevance of results, and the originality of the contribution.
This shift turned peer review into a mechanism of legitimisation. Since publishing does not merely mean making a result public, but also obtaining formal recognition within a disciplinary community, the problem arises when that recognition is perceived as an absolute guarantee of truth.
Fraud, opacity, and structural limits
Part of today’s crisis is visible in well-documented cases: falsified reviewer identities, collusive review rings, vulnerable editorial workflows, industrially produced papers, and publications in predatory journals lacking meaningful control.
To this we must add a structural factor: in many fields, results depend on software and code that are not made public. Reviewers assess an article without being able to access the full process that generated the data, and review becomes, in part, an act of trust.
Peer review is not designed to unmask sophisticated fraud, nor to replicate an experiment in full. It is a plausibility filter, not an investigative audit. When it fails, it is often not due to individual bad faith, but to limitations intrinsic to the model.
Metrics, incentives, and overproduction
Contemporary academia is governed by quantitative metrics: publication counts, citations, the h-index, impact factors, and institutional rankings. In this context, publishing increases visibility and funding, whereas replicating a study rarely produces prestige.
Making data and code public requires time that brings no immediate curricular return, and devoting many hours to scrupulous reviewing does not directly improve one’s professional position. The result is a systemic imbalance, because output grows faster than the capacity to verify it.
Peer review thus becomes a node in a system that privileges quantity, novelty, and visibility over slowness, replication, and consolidation. Delegated trust then becomes inevitable.
The article format and the compression of thought
Peer review tends to privilege the short article format, focused on a narrowly defined result. Revision requests often imply cuts, reductions of context, and argumentative simplifications.
When reduction becomes systematic, the risk is not only synthesis, but the loss of historical and documentary articulation. Some research—especially in historical, philological, or theoretical fields—requires breadth to be fully demonstrative. Compression can weaken the proof, reshaping the very form of knowledge in an unnatural way.
Articles and books: a structural difference
Peer review was developed to evaluate bounded contributions. In a short article, the reviewer partly compensates for the lack of extended context by checking method, coherence, and relevance.
A book, by contrast, fully lays out the architecture of a research programme, from sources to the critical apparatus and the argumentative path. The reader has the space needed to judge the solidity of the overall structure directly.
To regard a book not subjected to peer review as intrinsically inferior means confusing format with quality. The validation of a large-scale work depends on the verifiability of its sources and on the long-term resilience of its argumentation.
Bibliography, alignment, and disciplinary memory
Review requests can imply not only additions, but also exclusions. If a citation is removed for reasons of alignment rather than for argumentative weakness, the real genealogy of an idea is altered.
The emphasis on “up-to-date” bibliographies also tends to privilege recent titles, sometimes regardless of their actual value, while fundamental but older works are deemed outdated. In that case, bibliography risks becoming an indicator of belonging rather than of relevance.
In other cases, requests to include certain references can strengthen networks of reciprocal citation, producing a progressive homogenisation of perspectives.
Reviews, conflicts of interest, and editorial ambiguity
Book reviews are not, strictly speaking, peer-reviewed articles. However, when they appear within the same graphic and institutional context as scholarly contributions evaluated by peers, they may be perceived as judgments validated at the same level.
If the reviewer holds strongly conflictual public positions toward the authors, or cites material drawn from spaces without any editorial verification, a dangerous ambiguity arises. An opinion piece can benefit from the legitimising aura of peer review without having undergone the same process.
The distinction between a scientific article and a critical review is essential to ensure transparency in procedures and in levels of validation.
Methodological validation, conformism, and interdisciplinarity
Peer review remains a useful tool of methodological control, since it can flag errors, request clarifications, and prevent conclusions that exceed what the data support.
The problem arises when passing review becomes an ontological badge of truth, and failing to pass is perceived as proof of irrelevance. There is a difference between methodological control and paradigmatic conformity.
This tension is particularly evident in interdisciplinary work. Research that combines historical analysis, mathematical tools, or computational models escapes traditional categories of evaluation. What lies outside familiar disciplinary boundaries may be perceived as suspect not because it is wrong, but because it is unfamiliar.
In this context, a kind of “inverted Ockham’s razor” can occur: what is rewarded is not the simplest and most elegant solution, but the one that uses the most complex language and conforms most closely to dominant disciplinary codes. Formal complexity becomes a sign of belonging; structural simplicity may be mistaken for naivety.
A detached view and a responsibility
Once professional stability has been achieved, it becomes possible to observe these mechanisms with greater distance. Peer review no longer coincides with academic survival, but becomes one tool among others.
For those entering research today, however, it simultaneously represents scientific evaluation, an economic filter, and a mechanism of career selection. Understanding its dynamics does not mean rejecting it, but removing it from the mythical dimension that often surrounds it and returning it to its real function: a method of control, not a tribunal of truth.
Scientific validation is a process, not a label.
Discover how ItalianOpera approaches research through documentable methods, critical comparison, and transparent sources.