Our flagship report: the case for Plural protocol ecosystems, and eight concrete recommendations for Europe.
Or read the summary below.
Part 1 - Why Now
A few platforms run the digital world and, with it, our markets, our informational environment, and, increasingly, our democracy. But the biggest underlying issue isn't that these platforms are foreign - it's that they're centralised. A European Big Tech would behave in the same way. Regulation treats symptoms; the fix is architectural, not geographic.
A handful of firms control the infrastructure through which public and private life operates in the digital realm. When the infrastructure fails - deliberately or not - entire digital ecosystems are exposed.
Digital platforms harvest data, attention and open-source labour, and in return hand back crumbs. AI repeats this pattern at a higher order of magnitude.
Europe's data lives on foreign soil, governed by foreign laws, on platforms whose rules are set beyond European reach.
It's not about the foreign origin of digital platforms, but the architectural logic of technical centralisation, economic extraction, and the funnelling of decision-making power.
The answer is a different architecture: plural protocol ecosystems. Think ecosystems, not champions; technical decentralisation, not centralisation; community-led protocols, not corporate-led platforms - and digital infrastructure that serves its builders, creators and users by design.
Part 2 - The Framework
⿻ Plurality lives across three co-equal dimensions: technical, economic and social.
All three must hold at once to achieve foundational properties, giving rise to emergent properties, and only then do the super-emergent outcomes appear - sovereignty, resilience, competitiveness.
Foundational
enforceable by design
Emergent
verifiable trust · credible neutrality · composability · agency
Super-emergent
sovereignty · resilience · competitiveness
The paper's two-tier assessment framework separates genuinely plural protocols from open-washing.
✦ Tier 1. Asks four eligibility questions - ownership of the specification; multiplicity of implementations; permissionless entry; true interoperability.
✦ Tier 2. Scores the foundational properties on a maturity spectrum, classifying systems as Truly Plural, Emerging Plural, or Pseudo-Plural. This method is operationalised in the Plural Stack Assessment toolkit.
The Plural Stack applies its assessment framework across three domains where the architectural choice between plural protocols and extractive platforms will shape the next decade.
Instead of systems built for infinite scale from a single point of control, plural AI means hyper-local guardian intelligences bound to the communities they serve - open models, resource caps, and explicit non-expansion pacts as design requirements of trustworthy AI.
Multiple models trained on diverse datasets, operating within interoperable protocols, preserve the cognitive diversity that healthy democracies depend on - and turn Europe's languages, regional cultures and dense civil society from a coordination problem into irreplaceable training substrate.
Open specifications with many independent implementations - as the AT Protocol demonstrates - mean no single operator can capture the network. Users and communities keep their identity, data and social graph when they leave, forcing services to compete on quality of care rather than lock-in.
User agency over the algorithms replaces opaque, attention-extracting curation: instead of a feed that ranks - and quietly buries - content on the platform's terms, open protocols let users and communities inspect, choose, swap or build the ranking algorithms that shape what they see. Social provenance adds transparency through active labeling, showing which communities embrace or contest a piece of content.
Taiwan's digital democracy - g0v, vTaiwan, Pol.is - shows how open-source collaboration and structured deliberation integrate citizens directly into policymaking, improving responsiveness while reducing capture by state or commercial actors.
Tools like quadratic voting, conviction voting and bridging-based ranking enable nuanced preference expression; AI-assisted deliberation at continental scale can feed legislative processes as a verifiable, auditable extension of democratic decision-making.
Part 3 - The Strategic Imperative
Europe missed the platform wave - but it is positioned to lead the open protocol-ecosystem wave. With plural properties in place, each structural problem becomes a structural advantage:
The window for action is narrow. The European Parliament's 2026 report on technological sovereignty - adopted by 471 votes to 68 - found that the EU relies on non-EU countries for over 80% of digital products, services, infrastructure and intellectual property. Once foundations harden, the cost of building alternatives rises by orders of magnitude.
And the scope is not limited to geography: the plural approach - between platform-capitalism and state-authoritarianism - is open to any actor who honours plural values. Democratic middle powers across the globe can co-create it, turning technical interoperability into a vehicle for global cooperation.
Part 4 - The Policy Toolkit
Lead, don't compete: Europe should not try to beat US hyperscalers at their own game. It should define the next paradigm and become the steward of plural protocol ecosystems - funding, building, and adopting them first.
A €5–10bn digital public infrastructure fund; define the next paradigm and steward its protocols.
Quadratic & retroactive funding, directly plural digital taxes, deep funding for foundational layers.
Mandatory interoperability, shared infrastructure, regulatory cooperation, global coalition building.
A plural protocol champions programme, agile innovation cycles, dedicated talent visas.
Plural protocol standards as procurement requirement; 50% plural infrastructure by 2035.
The European Cooperative Society as the preferred legal wrapper for decentralised organisations.
User innovation, data and data-product co-ownership, preventive rules-based controls.
Score hyperscalers and EU initiatives; reward those that evolve toward ⿻ Plurality.
The paper’s tiered framework is operationalised as a practical evaluation toolkit: evidence-graded verdicts across 16 properties in all three dimensions, so "how plural is this service?" becomes a measurable question rather than a slogan.
The ⿻ Plural Stack: Rebuilding Our Digital Foundations from Protocol Up. 51 pages · v1.0, June 2026 · CC BY 4.0. The collaborative work of researchers, legal experts, policy specialists and technology practitioners from across the ⿻ Plurality community.
Citation: Cite as: Fauler, A., von Rosenstiel, A., Nuti, J., Ferroli, F. et al., The ⿻ Plural Stack: Rebuilding our digital foundations from protocol up, ⿻ Plurality Community, 2026.
The Plural Stack Paper is the work of researchers, legal experts, policy specialists and technology practitioners from across the ⿻ Plurality community — convened by five partner organisations.
Plural protocol ecosystems are an invitation - to policymakers, public-sector builders, protocol communities, civil society, researchers and funders. Whether you want a briefing, an assessment, or to contribute to the framework: get in touch.
Prefer email? Write to hello@pluralstack.org.