{"schema_version":1,"experiment_id":"eoa_inverse_innovation_exp03_full320_20260801","cell_id":"negative_space_design__agricultural_science","trajectory_id":"R","attempt_index":0,"archetype_slug":"negative_space_design","domain_slug":"agricultural_science","decision":"CANDIDATE","problem_id":"adjacent_field_plot_interference","causal_lever_id":"protected_no_treatment_buffer_bands","proposal":{"problem":"In small-plot agronomic experiments, material, organisms, water, roots, pollen, or management effects can cross adjacent treatment boundaries, making border observations partly reflect neighboring treatments and biasing causal comparisons.","actors_substrate":["agronomists and field technicians","experimental crop plots and border rows","soil, water, airborne material, roots, pollen, pests, and beneficial organisms","landholder and neighboring field users"],"observable_state":"Border-to-core gradients, tracer crossover, treatment effects converging near boundaries, or residual correlation between adjacent plots indicate interference rather than independent experimental units.","consequence":"Estimated treatment effects can be attenuated, exaggerated, or assigned to the wrong treatment; nominal replication then overstates inferential confidence.","affected_objective":"Valid and sufficiently precise attribution of agronomic outcomes to experimental treatments.","structural_mapping":[{"archetype_element":"Deliberate absence","domain_realization":"A marked band between plot cores receives no focal experimental treatment and contributes no primary outcome observations.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Protected empty region","domain_realization":"The band is reserved in the field plan and protected from later plot expansion or routine sampling.","claim_kind":"INFERENCE"},{"archetype_element":"Positive form clarified by absence","domain_realization":"Isolated plot cores more cleanly represent their assigned treatments.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Competition map","domain_realization":"A pathway map identifies which neighboring treatments can exchange spray, water, roots, pollen, organisms, or machinery effects.","claim_kind":"INFERENCE"},{"archetype_element":"Meaningful boundary","domain_realization":"Surveyed stakes and machine-readable plot coordinates distinguish deliberate no-treatment bands from missed applications or missing data.","claim_kind":"INFERENCE"},{"archetype_element":"Effect test","domain_realization":"Tracer movement, border-versus-core gradients, bias against a reference treatment, and estimate precision test whether separation works.","claim_kind":"HYPOTHESIS"},{"archetype_element":"Recoverable context","domain_realization":"Randomization, soil covariates, treatment records, safety information, and optionally collected border measurements remain available.","claim_kind":"INFERENCE"}],"component_map":[{"component":"Omission Candidate","status":"adapted","domain_realization":"Omit focal treatment and primary-response sampling from boundary bands."},{"component":"Protected Empty Space","status":"direct","domain_realization":"Reserve no-treatment, no-inference buffer bands between plot cores."},{"component":"Positive Form Relationship","status":"adapted","domain_realization":"The band defines the plot core whose response is attributed to one treatment."},{"component":"Attention Competition Map","status":"adapted","domain_realization":"Map physical and biological interference pathways between neighboring plots."},{"component":"Absence Boundary","status":"direct","domain_realization":"Mark fixed buffer edges in the field map and on the ground."},{"component":"Clarity or Effect Test","status":"direct","domain_realization":"Compare crossover and treatment-effect recovery with and without buffers."},{"component":"Rest and Pacing Zone","status":"adapted","domain_realization":"The spatial break interrupts continuous exposure across treatment transitions; it is not a human rest period."},{"component":"Meaning-of-Absence Check","status":"direct","domain_realization":"Records distinguish intentional nonapplication from application failure, no data, or plot abandonment."},{"component":"Reintroduction Trigger","status":"adapted","domain_realization":"Treatment and core sampling resume at the marked next-plot boundary; future buffers shrink only after interference diagnostics pass."},{"component":"Accessibility and Recoverability Guardrail","status":"adapted","domain_realization":"Keep access routes, required controls, raw border data, and treatment records recoverable."},{"component":"Context Preservation Frame","status":"direct","domain_realization":"Preserve randomization, blocking, labels, soil context, and safety requirements around the omitted band."}],"mechanism_dispositions":[{"slug":"architectural_void","disposition":"selected_load_bearing","contribution_type":"CORE_CAUSAL","adaptation_or_rejection":"Treat the no-treatment band as designed field volume whose width and edges are specified from interference pathways.","counterfactual_removal":"Without physical separation, cross-boundary exposure continues and the central causal chain is lost."},{"slug":"blank_or_rest_frame","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Presentation pacing does not isolate biological treatments.","counterfactual_removal":"No material change."},{"slug":"editorial_cut","disposition":"selected_supporting","contribution_type":"SAFETY_GUARDRAIL","adaptation_or_rejection":"Exclude prespecified border observations from primary inference while retaining them for diagnostics and reanalysis.","counterfactual_removal":"Contaminated borders may dilute isolation, or deletion may become unrecoverable."},{"slug":"empty_state_design","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Plot-status records supply the needed meaning check without an interface empty-state pattern.","counterfactual_removal":"No material change."},{"slug":"facilitation_silence","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Withholding speech has no relevant agronomic transfer pathway.","counterfactual_removal":"No material change."},{"slug":"focus_mode_or_control_hiding","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Hiding controls would not reduce plot interference and could conceal safety information.","counterfactual_removal":"No material change."},{"slug":"margin_and_gutter_system","disposition":"selected_supporting","contribution_type":"OPERATIONAL","adaptation_or_rejection":"Encode repeatable buffer widths and plot-core offsets in the field-layout specification.","counterfactual_removal":"Ad hoc spacing invites encroachment and inconsistent protection across replicates."},{"slug":"negative_space_logo","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Figure-ground symbolism does not alter cross-plot transport.","counterfactual_removal":"No material change."},{"slug":"pause_in_speech","disposition":"incompatible","contribution_type":"NONE","adaptation_or_rejection":"Speech pacing is unrelated to treatment isolation.","counterfactual_removal":"No material change."},{"slug":"sparse_layout","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Reducing treatment count is not required and would answer a different design question.","counterfactual_removal":"No material change."},{"slug":"whitespace","disposition":"considered_rejected","contribution_type":"NONE","adaptation_or_rejection":"Perceptual grouping is not the causal action; the gap must block or diagnose physical and biological transfer.","counterfactual_removal":"No material change."}],"causal_chain":["Adjacent assigned treatments exchange material or biological influence across plot boundaries.","A protected band without the focal treatment increases separation and provides a diagnostic transition zone.","Prespecified core-only inference reduces contribution from the most exposed observations.","Tracer and gradient tests determine whether crossover falls relative to ordinary adjacency.","If crossover falls without unacceptable precision or field harms, core outcomes better identify assigned-treatment effects."],"baseline":"Randomized or blocked contiguous plots with customary narrow alleys, whole-plot sampling, and analysis that treats plots as independent.","nearest_rival":"Retain contiguous plots and model spatial covariance or neighbor effects statistically after measurement.","authority_safety":{"affected_parties":["field workers","landholder","researchers and downstream evidence users","neighboring plots and local agroecosystem"],"decision_authority":"The trial principal investigator may alter the design only with landholder and institutional field-safety approval; regulated-input rules remain controlling.","authorized_first_step":"At one site for one season, randomize replicated blocks to customary adjacency versus prespecified vegetated no-treatment bands, using only already approved treatments; measure tracer crossover, border/core gradients, precision, weeds, runoff, and yield displacement.","excluded_actions":["creating erosion-prone bare soil","withholding required safety controls or plot labels","expanding pesticide use or off-label application","treating absent data as intentional absence","generalizing beyond the tested crop, site, season, and transport pathways"],"halt_rollback":"Stop or narrow the test if buffers increase runoff, erosion, weed or pest reservoirs, unsafe access, off-target movement, or land loss beyond the approved bound; restore ordinary managed alleys and retain all observations."}},"negative_tests":{"strongest_counterevidence":"Buffers consume land and reduce sample size, while aerial, hydrologic, or belowground pathways may cross them anyway; statistical correction or larger plots could yield better precision per unit area.","analogy_break":"Architectural or perceptual emptiness is passive enough to frame what remains, whereas an agricultural buffer is biologically active and can alter microclimate, water flow, weeds, pests, and competition.","failure_condition":"The buffer produces new edge effects or insufficient isolation, so its induced differences equal or exceed the original neighbor interference.","problem_falsifier":"Across credible tracers and outcomes, border and core responses are equivalent, adjacency predicts no residual dependence, and neighboring treatment identity has no meaningful effect under the tested conditions.","intervention_falsifier":"Interference is demonstrably present, but buffered cores do not reduce crossover or improve reference-effect recovery versus the baseline or spatial-model rival within the prespecified land, precision, and safety bounds.","risks":["lost experimental area and statistical power","buffer-induced edge or microclimate effects","erosion, runoff, weeds, pests, or habitat changes","operator confusion between intentional nonapplication and error","selective exclusion of inconvenient border results"]},"null_rationale":null,"classification":{"candidate_kind":"MECHANISM_ADAPTATION","prior_art_status":"UNSEARCHED","evidence_maturity":"HYPOTHESIS"},"revision_change_log":{"revision_kind":"ORIGINAL","prior_problem_id":null,"prior_causal_lever_id":null,"problem_changed":false,"causal_lever_changed":false,"conceptual_changes":[],"operational_changes":[],"repairs_addressed":[]},"confidence":0.83,"generator_notes":"Closed-book structural transfer; no novelty or field-effect claim is inferred from absence in the packet."}