{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp09_archetype_breadth150_20260804","cell_id":"backcasting_pathway_design__chemistry_materials","arm":"BREADTH_PROBE_ONE_SHOT","candidate_id":"backcasting_pathway_design__chemistry_materials__P1","proposal_index":1,"version":0,"title":"Backcast a Reprocessable Wind-Turbine Blade Composite","problem":"A blade-materials program has selected a future state in which a fiber-reinforced composite can satisfy defined structural, fire, weathering, manufacturing, and end-of-service recovery criteria, but its current forward formulation process begins with irreversible epoxy chemistry and optimizes one property at a time. Candidate resins can therefore advance before the team discovers that curing conditions, fiber sizing, repair methods, separation chemistry, or recovered-material quality make the complete endpoint infeasible.","actors":["Composite chemists","Structural materials engineers","Blade manufacturing process engineers","Repair and field-service engineers","End-of-service recovery specialists","Environmental health and safety reviewer","Procurement representative","Materials program owner"],"observable_state":"The active development plan is a forward list of resin modifications and coupon tests. It lacks an agreed condition-rich endpoint, explicit prerequisite links between recovery and in-service performance, readiness thresholds for scale-up, and owned present experiments addressing the earliest uncertain dependencies.","consequence":"Resources can accumulate around a resin that performs well in initial mechanical tests but cannot later meet processing, repair, safe separation, or recovered-fiber requirements; a decisive incompatibility may emerge only after scale-up commitments.","affected_objective":"Select a technically and operationally feasible pathway to a blade composite whose performance and end-of-service recovery conditions can be evaluated without silently relaxing either set of criteria.","intervention":"The program owner convenes a Reverse Milestone Planning Workshop that first specifies the desired composite system as observable endpoint criteria. Participants then reason backward from qualified blade and recovery states to the immediately preceding material, process, repair, separation, safety, and supply conditions. They connect those conditions on a Dependency Mapping Board, mark uncertain assumptions and readiness thresholds, and translate the nearest prerequisites into a Present Commitment Register containing only bounded analyses and bench-scale tests. A Pathway Assumption Review occurs after the first evidence cycle before any scale-up decision.","structural_mapping":[{"archetype_element":"Desired Future State","domain_realization":"A defined blade composite system meeting agreed structural, fire, weathering, manufacturability, repairability, and end-of-service separation or reprocessing criteria without silent substitution of weaker criteria."},{"archetype_element":"Future Success Criteria","domain_realization":"Quantified coupon-level property thresholds, permitted processing window, repair compatibility, separation conditions, recovered-fiber quality measures, worker-safety constraints, and material-accounting boundaries approved for pathway testing."},{"archetype_element":"Prerequisite Condition","domain_realization":"Examples include a reversible or selectively cleavable matrix network, compatible fiber sizing, cure conditions available on the intended process, retained properties after aging and repair, controllable separation chemistry, and a defined use for recovered constituents."},{"archetype_element":"Reverse Milestone","domain_realization":"Condition-based gates such as recovery demonstrated after representative aging before formulation scale-up, and processing-window compatibility demonstrated before manufacturing trials; dates are secondary to readiness conditions."},{"archetype_element":"Dependency Map","domain_realization":"A map showing which molecular-network choices enable cure, service durability, repair, separation, and recovered-fiber quality, including conflicts in which one prerequisite impairs another."},{"archetype_element":"Present Commitment","domain_realization":"Assign owners to define endpoint thresholds, test the highest-uncertainty chemistry-to-recovery dependency on coupons, document safety constraints, and review the pathway before authorizing larger batches."},{"archetype_element":"Baseline Current State","domain_realization":"An irreversible epoxy-centered screening program that advances formulations primarily through near-term processability and mechanical-property results."},{"archetype_element":"Feasibility Constraint","domain_realization":"Bench work must remain within approved chemical inventories, equipment, waste handling, thermal limits, and exposure controls; pathway criteria must also reflect the intended manufacturing process rather than an unconstrained laboratory process."},{"archetype_element":"Monitoring Trigger","domain_realization":"Reopen the dependency map if a candidate misses a non-negotiable endpoint threshold, requires an unapproved separation condition, loses unacceptable properties after representative aging, or depends on an unavailable input."},{"archetype_element":"Pathway Owner","domain_realization":"The materials program owner maintains the endpoint-path distinction, assigns present commitments, and brings scale-up decisions to the authorized review group."}],"mechanism_mapping":[{"mechanism_slug":"reverse_milestone_planning_workshop","role":"Elicits the conditions that must exist immediately before blade qualification and end-of-service recovery, then recursively identifies earlier enabling conditions.","counterfactual_removal":"Without the workshop's reverse questions, the team could retain a conventional test schedule whose stages are not causally derived from the desired material system."},{"mechanism_slug":"dependency_mapping_board","role":"Makes conflicts and ordering relationships among network chemistry, cure, sizing, durability, repair, separation, and recovered-material quality visible.","counterfactual_removal":"Without the board, cross-workstream prerequisites could remain implicit and incompatible candidates could progress independently."},{"mechanism_slug":"present_commitment_register","role":"Connects each nearest prerequisite to an owner, bounded test or analysis, resource limit, decision criterion, and review point.","counterfactual_removal":"Without the register, the backcast could remain an explanatory roadmap without changing current experimental commitments."},{"mechanism_slug":"pathway_assumption_review","role":"Tests whether evidence still supports causal, safety, resource, and timing assumptions while distinguishing pathway revision from endpoint revision.","counterfactual_removal":"Without the review, failed assumptions could be absorbed through silent endpoint erosion or continued investment in an infeasible route."}],"causal_chain":["A condition-rich future composite state fixes what must count as success across service, manufacturing, repair, and recovery rather than allowing later criteria to drift.","Backward questioning identifies the material and operational conditions that must hold immediately before that endpoint can be qualified.","Recursive dependency mapping exposes chemistry-process-recovery conflicts and reveals which uncertain prerequisites must be resolved before scale-up.","Condition-based reverse milestones prevent a formulation from advancing merely because scheduled activities were completed.","The nearest high-uncertainty prerequisites become owned, bounded present experiments with explicit decision criteria.","Assumption reviews compare evidence with the dependency map and trigger deliberate pathway revision, endpoint reconsideration, or halt.","Present experimental resources are consequently directed toward early feasibility discriminators that are causally linked to the selected future state."],"baseline":"Continue forward formulation screening from the incumbent epoxy platform: vary monomers, curing agents, additives, and processing parameters; rank candidates on early coupon properties; add repair, aging, separation, and recovered-fiber tests in later development stages.","nearest_rivals":["Multi-objective design-of-experiments that screens formulations against several measured responses but does not derive the experimental sequence from future prerequisite conditions","A conventional stage-gate materials-development process with predefined phases but no reverse derivation of gate conditions","Life-cycle assessment used to compare candidate systems after their material and process architectures have largely been selected","A strategic materials roadmap listing workstreams and dates without encoding causal dependencies between endpoint conditions"],"remaining_contrastive_claim":"Relative to these rivals, the proposed intervention makes the chosen future composite state the source of the experimental pathway: it derives condition-based prerequisites backward across chemistry, manufacturing, service, and recovery, and permits near-term work only when its role in that dependency chain is explicit. The claim is structural, not a claim of novelty or superior effect.","authority_safety":{"decision_authority":"The materials program owner may convene planning sessions and authorize document review and approved bench-scale coupon work; the organization's EHS and laboratory authorities retain control over chemical handling, equipment, waste, and exposure limits, while the designated technical review group retains scale-up authority.","authorized_first_step":"Conduct one facilitated mapping session using existing specifications and safety constraints, followed by at most one approved small-batch coupon comparison targeting the highest-uncertainty prerequisite identified by the map.","excluded_actions":["Full-scale blade manufacture or destructive blade testing","Use of unapproved monomers, solvents, catalysts, temperatures, pressures, or separation reagents","Changes to production equipment or operating procedures","Human or environmental release experiments","Supplier commitments, procurement contracts, or claims of regulatory or commercial readiness","Relaxation of safety or endpoint criteria solely to preserve a preferred formulation"],"halt_rollback":"Stop bench work on any unanticipated reaction, exposure-control breach, uncontrolled exotherm, equipment-limit excursion, or waste-handling incompatibility. Quarantine materials under existing laboratory procedures, record the event, and return the candidate pathway to EHS and technical review. A failed prerequisite returns the pathway to the mapping state; it does not automatically redefine the endpoint."},"negative_tests":{"strongest_counterevidence":"Existing program records already contain a condition-rich endpoint, a validated reverse dependency structure spanning manufacture through recovery, and current experiments selected by that structure; this would show that the observable gap motivating the intervention is absent.","problem_falsifier":"Interviews and document review show that no future composite endpoint has actually been selected, or that stakeholders disagree on non-negotiable success criteria; the problem would then be endpoint selection or alignment rather than missing pathway logic.","intervention_falsifier":"Independent reviewers cannot trace the present experiments to necessary endpoint prerequisites, or the reverse map fails to identify any consequential dependency, ordering change, or earlier feasibility test beyond the baseline program.","risks":["Prematurely fixing one endpoint can suppress legitimate alternative material systems.","Participants may rationalize existing favored resin work as backward-derived prerequisites.","Uncertain chemical relationships may be presented as necessary dependencies without adequate evidence.","A dense dependency map may create false confidence or administrative burden.","Endpoint criteria may conflict, leaving no feasible pathway within available safety and process constraints.","Coupon evidence may not transfer to laminate, component, manufacturing, or field behavior.","Commercial or scheduling pressure may cause silent relaxation of recovery or safety criteria."]},"next_evidence_step":"Within a two-week planning window, review only the program's existing endpoint specifications, formulation plan, process limits, recovery assumptions, and EHS constraints; run one 90-minute reverse-milestone workshop; produce a dependency map and commitment register; then ask two technical reviewers not involved in the workshop to test whether every proposed present experiment traces to an endpoint prerequisite and whether the map exposes at least one falsifiable cross-stage assumption. Authorize one small-batch coupon test only if it uses already approved materials and procedures; otherwise stop after the document-and-mapping review.","prior_art_status":"UNSEARCHED","diversity_from_prior_proposals":"Not assessed against other proposals because runtime isolation forbids inspecting them; this candidate was derived solely from the supplied archetype and chemistry/materials domain card.","revision_record":{"parent_version":null,"progress_targets_addressed":[],"conceptual_changes":[],"operational_changes":[],"evidence_changes":[],"claim_changes":[]}}