{"abstention_reason":null,"arm":"SUBSTRATE_DIVERSE_P2","candidate_id":"second_system_complexity_restraint__sport_science__SUBSTRATE_DIVERSE_P2","cell_id":"second_system_complexity_restraint__sport_science","decision":"PROPOSAL","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","proposal":{"actors":["Biomechanics lead responsible for the sprint-testing facility","Sport-science technicians who align and calibrate instruments","Strength and conditioning coaches who interpret sprint-test results","Facilities engineer responsible for mounting, power isolation, and lane safety","Athletes who may later participate after validation and approval","Performance director who authorizes operational use"],"affected_objective":"Preserve the predecessor sprint test's repeatable timing and practical throughput while preventing a physically overcoupled successor facility from delaying or degrading routine performance testing.","arm":"SUBSTRATE_DIVERSE_P2","authority_safety":{"authorized_first_step":"The biomechanics lead and facilities engineer may construct and bench-test one unloaded modular lane segment using inert targets or a rolling calibration trolley; no athlete testing or training decision is authorized.","decision_authority":"The performance director approves operational commissioning; the biomechanics lead owns measurement validity; the facilities engineer owns structural, electrical, and trip-hazard safety; qualified coaches decide whether validated outputs are useful for training; medical staff retain authority over athlete participation restrictions.","excluded_actions":["Testing athletes before structural, electrical, optical, and measurement-safety checks are complete","Using unvalidated module outputs for selection, return-to-play, or individualized training decisions","Installing raised plates, cables, rails, or sensor mounts that create an uncontrolled collision or trip hazard","Treating simultaneous measurements as interchangeable when their sampling geometry or protocols differ","Discarding the predecessor timing equipment before the core successor lane passes repeatability and throughput criteria"],"halt_rollback":"Stop commissioning if the modular lane changes the running surface, creates a hazard, degrades core timing repeatability, requires inactive modules to operate, or cannot be returned to its core configuration within the specified changeover time. Remove optional pods, reinstall flush blanking plates, electrically isolate vacant bays, and resume the predecessor timing setup."},"baseline":"Continue building a single fully instrumented sprint corridor in which timing gates, embedded force plates, cameras, electromyography, pressure measurements, environmental sensors, cabling, triggers, and calibration fixtures are mechanically and electrically coupled before routine sprint timing can resume.","candidate_id":"second_system_complexity_restraint__sport_science__SUBSTRATE_DIVERSE_P2","causal_chain":["A simple predecessor sprint test succeeds with two timing gates, a fixed lane, one start procedure, and rapid manual setup.","Its success authorizes a permanent successor facility and releases accumulated demand for split timing, force measurement, motion capture, electromyography, plantar pressure, and environmental sensing.","Placing all postponed instruments into one corridor creates shared alignment, surface, wiring, synchronization, calibration, and maintenance dependencies.","Those physical dependencies make even the proven timing test contingent on readiness of the entire measurement stack, reducing throughput and postponing commissioning.","A datum-referenced lane with physically independent instrument bays preserves the proven timing path while giving each optional measurement a bounded mechanical and electrical interface.","Flush blanking plates, isolated power branches, independent local triggers, and removable sensor pods prevent absent or failed ambitions from interrupting the core lane.","A fixed number of occupied bays embodies a launch-tier complexity limit, while later capabilities can be tested one pod at a time without reconstructing the corridor.","The successor can therefore begin with repeatable timing, retain a physical escape path, and acquire additional measurement capability only after each module demonstrates independent validity and safe changeover."],"cell_id":"second_system_complexity_restraint__sport_science","consequence":"The monolithic successor remains unavailable for routine sprint testing, or produces less repeatable and lower-throughput core timing because every session inherits the alignment, calibration, surface, and failure modes of instruments that were not required by the predecessor's validated use.","diversity_from_prior_proposals":"P1 governs the backlog, scope, and migration of a multisource athlete-monitoring information system. This proposal instead addresses physical coupling in a successor sprint-measurement facility and intervenes through modular lane construction, removable instruments, isolated utilities, and independent calibration geometry; its affected problem, intervention, and causal path are materially different.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Construct the successor as a datum-referenced modular sprint lane rather than a fully integrated measurement corridor. Retain a core pair of independently clocked photocell gates and the predecessor start geometry. Install a limited number of mechanically isolated, flush instrument bays with repeatable locating pins, separate fused power branches, local trigger connectors, and removable measurement pods. Close every unused bay with a load-rated surface-matched blanking plate so the lane remains runnable without optional instruments. Give each pod its own calibration fixture and require it to be physically removable without disturbing core gate alignment. Commission the lane in its timing-only configuration; add force, imaging, pressure, or electrophysiology pods individually only after unloaded bench validation and authorized human-subject validation. The essential restraint is embodied in physical separation, finite bay capacity, and a usable blanked-core configuration, not in software or backlog governance.","mechanism_mapping":[{"counterfactual_removal":"Without the preserved core gate geometry, the successor has no physically privileged version of the predecessor's validated test and routine timing remains dependent on the complete facility.","mechanism_slug":"successor_charter","role":"Materializes the successor core contract as a timing-capable lane that operates independently of optional instruments."},{"counterfactual_removal":"Without mechanically isolated bays, locating datums, and separate power branches, adding or servicing one instrument can misalign, energize, or disable the rest of the lane.","mechanism_slug":"rewrite_scope_firewall","role":"Creates physical boundaries between core parity and optional measurement ambitions."},{"counterfactual_removal":"Without a finite number of bays and the requirement for flush blanking plates, instruments can accumulate without a material limit on surface disruption, wiring, calibration fixtures, or setup burden.","mechanism_slug":"complexity_budget_review","role":"Embodies a complexity budget in occupied measurement positions and physical interfaces."},{"counterfactual_removal":"Without removable pods and independent calibration fixtures, deferred instruments must be integrated simultaneously and cannot earn entry through bounded tests.","mechanism_slug":"staged_release_ladder","role":"Allows capabilities to enter the successor one measurement substrate at a time."},{"counterfactual_removal":"Without a timing-only configuration that remains safe and functional, failure of an optional module strands the whole successor and eliminates rollback.","mechanism_slug":"parity_then_expansion_gate","role":"Makes core measurement continuity physically prior to expansion."}],"nearest_rivals":["A general laboratory equipment-purchasing cap, which limits expenditure but does not preserve predecessor capability through physical decoupling.","A software synchronization architecture for multimodal sensors, which coordinates data but leaves the core test dependent on the integrated instrument stack.","Ordinary modular equipment storage, which moves devices between sessions but does not provide repeatable datum geometry, flush safe bays, or independent calibration interfaces.","A minimum viable sprint-testing protocol, which narrows test content but does not address the successor-specific stockpile of postponed instruments or create a durable physical expansion path.","A generic facility safety review, which can identify hazards but does not prevent optional measurements from becoming structural prerequisites for the proven core test."],"negative_tests":{"intervention_falsifier":"The intervention is falsified if unloaded and authorized human validation shows that modular mounting worsens core timing repeatability or surface safety, optional-pod removal still requires recalibrating the timing gates, blanked operation is not materially faster or more reliable than the monolithic design, or the same decoupling can be achieved without the proposed physical interfaces.","problem_falsifier":"The diagnosis is falsified if no successful constrained predecessor exists, optional instruments are not postponed ambitions from that predecessor, the measurements must be physically simultaneous to answer the current validated performance question, or the planned corridor already permits safe timing-only operation with independent calibration and failure isolation.","risks":["Mounting tolerances may introduce measurement error when pods are repeatedly removed and replaced.","Bay edges, covers, or subsurface stiffness differences could alter sprint mechanics or create injury hazards.","A finite bay count may prematurely exclude a measurement later shown to be essential.","Independent clocks may complicate studies that genuinely require high-precision cross-instrument synchronization.","Repeated module changeovers may increase technician workload or equipment damage.","Visible empty bays may create pressure to fill capacity regardless of evidence."],"strongest_counterevidence":"The strongest counterevidence would be validation showing that the present scientific question requires tightly synchronized force, kinematic, electrophysiological, and pressure measurements; that shared mounting and triggering materially improve validity; and that a monolithic corridor can still run the predecessor timing test safely and independently with equal or better repeatability, setup time, and fault isolation."},"next_evidence_step":"Build one full-scale unloaded bay mock-up beside the existing lane. Use a rolling calibration trolley or pendulum target to compare timing-only repeatability, surface continuity, pod insertion repeatability, electrical isolation, and changeover time across blanked, installed, and deliberately failed-module conditions. Produce a bench report before seeking authorization for athlete validation.","observable_state":"Facility drawings show embedded force plates, camera mounts, sensor wiring, trigger distribution, and other planned instruments crossing common structural and electrical interfaces. Core timing cannot be commissioned until the integrated corridor is complete; no flush blanked configuration, independent module calibration geometry, finite occupied-bay limit, or demonstrated timing-only failure-isolation test is specified.","prior_art_status":"UNSEARCHED","problem":"A field sprint test proved useful under severe constraints: two photocell gates, one lane geometry, a standardized start, and rapid setup. Its success released a postponed wish list for intermediate splits, embedded force plates, three-dimensional motion capture, electromyography, plantar-pressure measurement, and environmental sensing. The planned permanent successor incorporates these ambitions into one instrumented corridor. Shared floor structures, sight lines, cables, triggers, and calibration procedures now make the successor's proven timing function dependent on completing and maintaining every optional measurement layer. The physical integration intended to make the facility comprehensive is making its core test harder to commission, repair, and run.","proposal_index":2,"remaining_contrastive_claim":"The opportunity specifically depends on a successful constrained sprint-timing predecessor whose accumulated measurement ambitions become physically coupled in its successor. Without that predecessor-to-successor constraint-release sequence, the proposal would be ordinary modular laboratory design rather than second-system complexity restraint.","revision_record":{"claim_changes":["Initial P2 version; no claim of superior athletic outcomes, injury prevention, prevalence, or effect size is made."],"conceptual_changes":["Introduces physical modularity and measurement isolation as an alternative-substrate realization of successor restraint.","Targets a sprint-testing facility rather than P1's athlete-monitoring information workflow."],"evidence_changes":["No external evidence or prior-art search was used; explicit bench and human-validation falsifiers are provided."],"operational_changes":["Limits the first step to an unloaded physical mock-up and calibration-target testing.","Makes timing-only operation and removal of optional pods the rollback state."],"parent_version":null,"progress_targets_addressed":["Material independence from the sealed P1","Measurement-instrumentation primary substrate","Successor-specific postponed-ambition mechanism","Physical complexity budget and staged expansion path","Safe bounded first evidence step","Explicit falsifiers and rollback conditions"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Constrained first success","domain_realization":"A two-gate field sprint test delivers repeatable, coach-usable timing through narrow geometry and few instruments."},{"archetype_element":"Predecessor constraint memory","domain_realization":"The original gate spacing, start procedure, clear running surface, rapid setup, and independent timing are retained as physical design requirements."},{"archetype_element":"Deferred ambition backlog","domain_realization":"Force, motion, pressure, electrophysiology, environmental, and additional split measurements are represented by optional pods rather than embedded launch prerequisites."},{"archetype_element":"Successor core contract","domain_realization":"The blanked modular lane must reproduce the predecessor's timing test without energizing, aligning, or calibrating optional instruments."},{"archetype_element":"Preserved constraint function map","domain_realization":"A clear surface becomes load-rated flush covers; limited instrumentation becomes finite bays; simple alignment becomes fixed datums; independent operation becomes isolated power and triggering."},{"archetype_element":"Ambition triage gate","domain_realization":"An ambition crosses into the lane only by becoming a pod that fits the bounded interface and passes independent calibration and safety validation."},{"archetype_element":"Complexity and scope budget","domain_realization":"Finite bay positions, electrical branches, mounting envelopes, surface tolerances, and changeover limits cap the successor's material measurement burden."},{"archetype_element":"Staged successor release ladder","domain_realization":"Timing gates constitute launch; optional pods are commissioned individually after bench and authorized athlete validation."},{"archetype_element":"Launchability gate","domain_realization":"A safe blanked surface and independent timing path permit operational launch before the complete measurement wish list is installed."},{"archetype_element":"Rollback or escape path","domain_realization":"Any optional pod can be removed, its branch isolated, and its bay covered without disturbing the core timing geometry."}],"substrate_contract":{"counterfactual_independence":"If all planning software, databases, automated analyses, scheduling systems, and scope-governance routines are removed, the blanked lane still supports the core timing test, optional instruments remain mechanically and electrically isolated, and a failed pod can still be removed without disabling the lane.","forbidden_channel_audit":"Software may record measurements or assist synchronization, and human review authorizes use, but neither creates the essential effect. The restraint arises from physical bay limits, flush covers, independent power, repeatable mechanical datums, removable pods, and standalone timing instrumentation; no physical noun substitutes for a governance or computational gate.","primary_allowed_process":"MEASUREMENT_INSTRUMENTATION"},"title":"Blankable Modular Sprint Lane for a Launchable Second Testing System","version":0},"schema_version":1}