Research Programme Publications Working Papers Talks CV
01Network Scientist · Berlin

ThomasPetzold

Thomas Petzold, Ph.D. · Professor | Management & Innovation · Adaptive Knowledge Networks

Research thesisA_KN / 2007–

Why knowledge
does not
scale.

Digital networks scale connectivity faster than they scale knowledge integration. The mismatch — network-induced fragmentation — is the structural problem this work addresses.

StatusActive
·Current Research Highlights

Latest
conference contributions.

Two accepted contributions advancing the Communication & AI Systems field of the programme — on network architectures for human–AI interaction, and on conscious agency in interactive AI systems.

NetSci 2026
Cambridge, MA · 1–5 June 2026

From Large Language Models to Large Communication Models: A Network Architecture for Dyadic and Adaptive Human–AI Interaction

Petzold & Hotz · International School and Conference on Network Science.

CogSci 2026
Rio de Janeiro, BR · 22–25 July 2026

Toward Conscious Agency in Artificial Intelligence: Evaluating and Bridging the Gap Between Phenomenological Principles and Interactive AI Systems

Hotz & Petzold · Annual Meeting of the Cognitive Science Society.

IResearch statement

A central paradox
of the digital age.

Digital systems are increasingly efficient at scaling connections, but increasingly unreliable at producing integrated knowledge. As networks densify and accelerate, information becomes fragmented, decontextualised, and temporally unstable.

This is not information overload. It is a structural failure of knowledge formation — visible across platforms, AI‑mediated communication, and decentralised systems.

i.

Connectivity scales.
Integration does not.

Adding nodes is cheap. Reconciling them into coherent knowledge is super-linear in cost — and digital networks rarely pay it.

ii.

Visibility is not
understanding.

Platforms amplify what is seen faster than they integrate what is meant. Reach grows; meaning erodes.

iii.

Speed is the enemy
of integration.

When information flows accelerate, the knowledge structures built on them become temporally unstable.

Media and networks are so intertwined that it is virtually impossible to treat them separately. Thomas Petzold’s lively book uncovers the impact our exploding understanding of complex networks has on our view of communication systems.

Prof. Albert-László Barabási
Director, Network Science Institute
Northeastern University & Harvard
Author, Network Science
On Global Knowledge Dynamics
and Social Technology · 2017
Societal relevance

Modern societies are increasingly unable to transform distributed information into coherent collective knowledge.

Organisational learning, management decision-making, innovation systems, and the institutions that depend on them all rely on integrative capacities that digital infrastructures do not provide by default.

Platforms, recommender systems, and generative models optimise distribution, amplification, and engagement far more strongly than contextual stabilisation and integration. The result is a digital society that is information-rich and knowledge-fragile. Understanding why — and what an integrative architecture would look like — is the long-term object of this programme.

I.Research Programme

Adaptive Knowledge
Networks.

A long-term theoretical programme on why digital networks distribute information faster than they integrate it — and what an integrative architecture would require.

§1 The Paradox

Distribution scales.
Integration does not.

Digital systems have progressively solved the problem of information distribution — while leaving the problem of knowledge integration structurally underdesigned.

Across half a century, the dominant trajectory of digital infrastructure has been the progressive reduction of distribution cost: networks have become denser, faster, more personalised, and more global. The implicit assumption that integration would emerge as a by-product of distribution has not held.

What has emerged instead is a digital society in which the supply of information vastly outpaces the institutional, cognitive, and computational capacities required to integrate that information into stable, contextual, and collectively held knowledge.

§2 The Concept

Integration
underdesign.

The mismatch between distribution and integration is not a contingent failure of any particular platform. It is a design property of the systems through which digital society conducts itself. Recommender systems, social platforms, generative models, and decentralised protocols are optimised — explicitly or implicitly — for throughput, engagement, and amplification.

None of these objectives reward the slow, costly, contextual work of integration: reconciling claims, stabilising meanings, situating knowledge in shared histories, or maintaining the conditions under which distributed information can be turned into something a community can act on.

I call this absence integration underdesign. It is the central object of the programme.

§3 The Mechanism

Network-induced
fragmentation.

The mechanism through which integration underdesign manifests is network-induced fragmentation: a systematic erosion of the structural conditions of knowledge integration as networks densify, accelerate, and personalise.

Fragmentation is not a downstream consequence of bad content or bad actors. It is a property of network architecture under conditions of high distribution and low integrative incentive. Three vectors are central:

Density — as the number of available pathways grows, the coherence of any individual pathway declines. Speed — as flows accelerate, the temporal stability of knowledge structures degrades. Personalisation — as exposure narrows, the overlap of context required for shared knowledge thins.

§4 The Fields

Three research
fields.

The programme is organised across three substantive fields. Each examines a distinct site at which network-induced fragmentation is observable, measurable, and consequential — and at which the broader concerns of management and innovation dynamics are at stake.

F1

Knowledge Networks

The structure of global, multilingual, and institutional knowledge systems — from Wikipedia's inter-language linkage to scientific citation networks — treated as topological objects whose architecture conditions what can be known and innovated upon.

F2

Platform & Organizational Systems

Media platforms, recommender systems, and the organisations and innovation ecosystems built on top of them. How amplification, concentration, and engagement metrics restructure the conditions under which collective understanding, strategic decision-making, and management practice can form.

F3

Communication & AI Systems

Human–algorithmic communication, generative AI, and decentralised consensus protocols. How AI-mediated and trust-mediated infrastructures intervene in the formation, stabilisation, and verification of knowledge across institutions and markets.

F3 · Current contributions

Current conference
contributions.

Two accepted contributions extending the Communication & AI Systems field. Both develop the integrative architecture argument toward the design of human–AI interaction.

NetSci 2026
1–5 June

From large language models to large communication models: A network architecture for dyadic and adaptive human–AI interaction

Petzold, T., & Hotz, L. (2026, June 1–5). [Conference presentation]. NetSci 2026: International School and Conference on Network Science, Cambridge, MA, United States.

CogSci 2026
22–25 July

Toward conscious agency in artificial intelligence: Evaluating and bridging the gap between phenomenological principles and interactive AI systems

Hotz, L., & Petzold, T. (2026, July 22–25). [Conference presentation]. CogSci 2026: Annual Meeting of the Cognitive Science Society, Rio de Janeiro, Brazil.

§5 Trajectory

What the programme
produces.

The aim of the programme is the development of a theoretical and empirical account of integrative architecture — the principles under which networks, platforms, and AI systems could be designed and governed so that distribution and integration scale together.

Outputs include peer-reviewed publications across the three fields, working papers and essays articulating the framework, applied collaborations with institutions facing concrete integration problems, and teaching at the intersection of network science, management, and innovation.

See publications by trajectory →

II.Publications

By research
trajectory.

Peer-reviewed work, chapters, books, and selected papers grouped into four research trajectories within the Adaptive Knowledge Networks programme.

C

Current Conference Contributions

F3 · Communication & AI Systems · 2026
T1

Knowledge Networks & Cultural Complexity

F1 · Knowledge systems, multilingual networks, cultural data
2017

Global Knowledge Dynamics and Social Technology

Petzold — Palgrave Macmillan · monograph, endorsed by Prof. Albert-László Barabási

Publisher
2014

Geographic and Linguistic Normalization

Petzold & Liao — in Proceedings of the International Symposium on Open Collaboration (OpenSym '14), ACM.

Proceedings
2012

A World Map of Knowledge in the Making

Petzold, Liao, Hartley & Potts — Wikipedia's inter-language linkage as a dependency explorer of global knowledge accumulation. Leonardo, 45(3), MIT Press.

MIT Press
2012

36 Million Language Pairs

Petzold — on the co-evolution of languages and content in the Internet environment. Cultural Science Journal.

Open Access
2010

Analysing Geo-linguistic Dynamics of the World Wide Web

Liao & Petzold — cartograms and network analysis applied to the linguistic development of Wikipedia. Cultural Science Journal.

Open Access
T2

Institutional & Platform Dynamics

F2 · Concentration, attention, institutions, innovation
2024

Digital Transformation's Impact on Media Concentration and News Diversity

Knuth, Petzold & Richter — a network analysis of cross-platform news usage in Germany. Journal of Media Economics.

DOI
2024

Cross-Platform News Consumption and Competition Dynamics in Germany

Petzold, Knuth & Richter — an SSRN working version of the network analysis above. SSRN.

SSRN
2021

Solution-Oriented Media Management Research

Petzold & Knuth — a framework to nurture future impact of the field. Journal of Media Business Studies, 19(4), 240–262.

DOI
2008

Gewalt in internationalen Fernsehnachrichten

Petzold — Springer VS · monograph, endorsed by Prof. Jean Seaton (Official Historian of the BBC).

Publisher
T3

Algorithmic Mediation & AI Systems

F3 · Human–algorithmic communication, computational governance
2013

Go and Stop Them (But Don't Tell Anyone That an Algorithm Said to)

Humer & Petzold — monitoring public life in Germany. Media in Transition 8 Conference, Massachusetts Institute of Technology, Boston, 3–5 May 2013.

Open Access
2015

Human-Algorithmic Scaffolding

Petzold — in de Been & Arora (eds.), Crossroads in New Media, Identity and Law, Palgrave Macmillan. With contributions by Saskia Sassen and Julie Cohen.

SpringerLink
2012

The Big Data Upgrade

Petzold — new dimensions in data analysis: risks and opportunities. ARC Centre of Excellence for Creative Industries and Innovation.

Open Access
2011

The Merkel Algorithm

Petzold — what Indian search engines reveal about the German Chancellor. Kulturaustausch: Zeitschrift für Internationale Perspektiven, II-III.

Open Access

Selected set · full archive on Google Scholar ↗ & ResearchGate ↗

III.Working Papers

Currently
in draft.

A working agenda of papers developing the Adaptive Knowledge Networks programme. Available on request — please cite the latest available version.

Draft

Integration Underdesign: A Framework for the Digital Mismatch

A formal articulation of the central concept of the programme. Defines distribution capacity, integrative capacity, and the conditions under which the two co-scale.

Request ↗
Draft

Bottleneck Shift: Distribution, Integration, and the Marginal Economics of Knowledge

A theoretical paper on the inversion of the marginal economics of digital knowledge under AI-mediated and decentralised substrates.

Request ↗
Outline

Consensus Without Context: Decentralised Verification and the Limits of Trust Machines

Joint output of the Trust Machines Lab. Examines whether decentralised consensus protocols can substitute for integrative context — and where they structurally cannot.

Request ↗
IV.Essays & Manifestos

Long-form
arguments.

Essays articulating the framework outside the strictures of the journal article. Forthcoming — intended as connective tissue between research papers and public discourse.

V.Talks & Lectures

Public &
scholarly talks.

Selected appearances across academic, public, and institutional venues since the inception of the programme.

2026Visiting Professorship

Entrepreneurship in Networked Ecosystems

Lecture series on structural positioning and entrepreneurial outcomes.

EMLV Business SchoolParis, FR
Course
2023Executive Programme

Knowledge Systems in Complex Ecosystems

Invited contribution on integration underdesign in sustainability information environments.

Harvard T.H. Chan School of Public HealthBoston, US
·
2022Conference Paper

Who Eats Up the Attention?

Analysing one day of digital news use in Germany — a network-analytic approach. With Knuth & Richter.

European Media Management AssociationMunich, DE
·
2021Keynote

Solution-Oriented Research Under Network Conditions

On translating fragmentation findings into institutional response.

European Media Management AssociationOnline
·
2017Book Launch

Global Knowledge Dynamics & Social Technology

Public conversation around the monograph and the network-theoretic account of knowledge formation.

Palgrave MacmillanBerlin · London
·
2015Invited Lecture

Human-Algorithmic Scaffolding

Companion talk to the Palgrave chapter with Sassen & Cohen.

Erasmus University RotterdamNL
·
2014Conference Paper

Geographic and Linguistic Normalization

Petzold & Liao — methods for cross-language comparison of online knowledge networks.

OpenSym (ACM)Berlin, DE
·
2012Public Talk

36 Million Language Pairs

First public articulation of the fragmentation argument.

TEDxBerlin · HKWBerlin, DE
YouTube
2011Conference

Wikipedia's Inter-Language Linkage as a Dependency Network

Presentation of the doctoral work and the Leonardo paper.

QUT · ARC Centre of ExcellenceBrisbane, AU
·
2009Fellowship

Network Approaches to Digital Knowledge

Summer Doctoral Programme contribution.

Oxford Internet InstituteOxford, UK
·
VI.Curriculum Vitae

Thomas Petzold,
Ph.D.

Professor | Management & Innovation, Media University Berlin.

Position
2013 – present

Professor | Management & Innovation

Media University Berlin · Head of Department of Management and Business Studies

Visiting positions
2014 – ongoing

Visiting Professor

EMLV Business School, Paris (2025–26) · University of Lucerne, Switzerland · European University Viadrina, Frankfurt (Oder) · Berlin School of Economics and Law

2018 – 2022

Visiting Scientist — ECRC, Charité Berlin

Experimental and Clinical Research Center · Complex Networks in Health Communication

2009 – 2010

Visiting Researcher — Oxford Internet Institute & Reuters Institute

University of Oxford, UK

Earlier research
2013 – 2018

Associate Researcher — Curtin University

Centre for Culture and Technology · Perth, Australia

2011 – 2018

Associate Researcher — Queensland University of Technology

ARC Centre of Excellence for Creative Industries and Innovation · Brisbane, Australia

2011 – 2013

Postdoctoral Researcher

WZB Berlin Social Science Center & ARC CCi · Brisbane

2017 – 2023

Director of Research, Trust Machines Lab

Blockchain ecosystems, generative AI, distributed trust verification

Education
2023

Executive Programme

Harvard University, T.H. Chan School of Public Health, Boston, USA

2011

Ph.D.

Queensland University of Technology, Brisbane, Australia

2009

Summer Doctoral Programme

Oxford Internet Institute, University of Oxford, UK

2007

M.A.

European University Viadrina, Frankfurt (Oder), Germany

2002

B.A.

The Open University, Milton Keynes, UK

Funding & honours
selection

Research funding

VolkswagenStiftung · Australian Research Council · German Academic Exchange Service (DAAD) · Australian Government · private foundations in Germany

Service
ongoing

Peer Reviewer

New Media and Society (SAGE) · Social Science Computer Review (SAGE) · Technological Forecasting and Social Change (Elsevier)

ongoing

International Board Member

Cultural Science Journal

selection

Co-supervision of doctoral theses

TU Berlin · Charité Universitätsmedizin Berlin · University of Music, Drama and Media Hanover

Geographies

Berlin · Brisbane · Oxford · Boston · Paris · Lucerne · Frankfurt (Oder) · Perth. Three continents, two decades.

VII.Contact

Correspondence
& collaboration.

Open to researchers, organisations, companies, and public institutions working at the intersection of network science, digital knowledge systems, and the structures that depend on them.

Enquiries are welcome from researchers, organisations, companies, and public institutions working on knowledge problems that are, structurally, network problems.

Particularly interested in applied integrative-architecture work with institutions and firms facing concrete integration challenges, in doctoral supervision within the programme, and in collaborations across management, innovation, media, and decentralised systems.

Berlin, Germany · CET / CEST.