Web4 decides who to trust. Momentum Era makes that trust physically binding.

Web1 gave access. Web2 gave participation, at the price of platform monopoly. Web3 gave ownership, at the price of token speculation. Web4's wager: the open problem now is trust between diverse intelligences, chiefly AI agents that buy, execute, and decide on our behalf. It answers two questions the current web cannot: can I know an agent will act appropriately before it acts? and can I prove what it did after, with no single trusted intermediary?

The answer is to earn trust through witnessed interaction, express it as verifiable structure, and let anyone inspect it. Six primitives: MCP (how entities talk), RDF (how statements mean), LCT (who is present), T3/V3 (what they can be trusted to do, and what the work is worth), MRH (in what context it applies), ATP/ADP (how value flows back to contribution).

The blueprint pencils Web4 for 2030. That is four years too cautious. The plumbing shipped inside the last twelve months, and it is the founder's exact zone, agent identity and trust.

The real risk is not being late. It is that the rails arrive so fast that Google, Mastercard, Visa, and FIDO define them, and the open gap, the verification and guarantee layer above the rails, is where an independent trust play must plant its flag before it is standardized shut.

The crash next year plausible · and a tailwind

A 2027 correction is a reasonable bet, not a lock: Burry's leveraged SOXX puts through Jan 2027, roughly $500B/yr of AI capex against about $12B of consumer AI revenue, MIT finding 95% of enterprises at zero measurable genAI ROI, Capital Economics modeling the S&P 500 down 21% by end-2027. Crypto runs a different clock (already down ~50%, a late-2026 bottom, 2027 recovery).

Read from the shipped ME10 platform, engine by engine. The rows marked ★ are the ones that matter most: Web4 lists them as research, pending, or unbuilt, and ME10 has running, doctor-green code today.

Two pure functions turn a Web4 trust decision into a physically enforced one. From the moment they exist, Web4 decides trust and ME10's fail-closed broker is the only path by which that trust can be exercised, with every exercise witnessed.

// me10-web4 — bind a Web4 trust context to the ME10 runtime membrane.

// 1) The LCT's authorized context BECOMES the capability manifest.
export function brokerFromLCT(lct) {
  const manifest = capsFromContext(lct.t3v3, lct.mrh)  // trust + horizon → declared caps
  const allow    = originsFromMRH(lct.mrh)             // relevance horizon → net allow-list
  return createBroker({ manifest, allow })            // deny-by-default; Hestia now enforces the LCT
}

// 2) Every mediated action BECOMES a witnessed, non-equivocable receipt (R6 Result → R7).
export function receiptToWitnessLeaf(receipt) {
  const leaf = appendLog(digest(receipt))            // me10-web3 RFC-6962 log
  return witnessCosign(leaf)                        // k-of-n counter-signed → feeds T3/V3
}

First move, highest leverage: make me10-broker accept an LCT as its manifest source and emit one witnessed receipt per broker.call. Give it a doctor and a red-team, the same pattern as every other engine. That single change is the whole positioning, in running code.

• The panic quarter kills pre-revenue infra regardless of thesis. In an acute crash correlations go to one and funding freezes. The whole plan is conditional on reaching default-alive first; treat move 4 as load-bearing, not optional.
• The incumbents may define the rails first. Google, Mastercard, Visa, and FIDO are standardizing the agent-trust layer now. The window to plant the independent guarantee flag is months, not years.
• Adopt the ontology, not the organization. MetaLINXX's Web4 is a small effort. Use its vocabulary for interoperability and narrative; do not make the venture depend on its adoption or survival.
• ME10's identity is per-app, not yet per-entity. An LCT binds to an agent, human, or org; ME10 binds to an app or build. The bridge's first real engineering task is minting the same non-transplantable token type for entities.
• "Sooner" cuts both ways. The trust layer arriving fast is the opportunity and the threat. It rewards shipping the reference runtime now and punishes waiting for a mature standard.