Batch cycle-002. Model 0.1.0, graph 0.2.0, parameters 0.1.0. 30 simulations, seeds 1 to 30; probes on 10. Every figure is a distribution over simulations of a structural model with seed parameter values; it shows what the model implies under these settings, not what will happen. Other nations are frozen at their 2026 ratings. No reconstructed historical data is used in this experiment.
Headline
Colombia played 30 rounds from 1996 under the scripted method, with scripted events, 30 times. Its capability index moved from 9.85 to a median of 8.75 (−1.10), with 90 per cent of simulations between 8.74 and 8.77 [experiment_objectives].
Starting position
In 1996 the nation ranks 49 on the index against the frozen field, holds 0 of nine domains at Tier 1 and has a tier rank of 52. Its base income is 276 credits a year, calibrated so that its 2026 position is affordable with headroom for investment.
What was decided
A simulation spent a median of 667 credits on moves. The five groups that took most were Internal Security & Order (buy, 96 credits, 14.4 per cent); Force Generation & Mobilisation (buy, 80 credits, 12.0 per cent); Land Power (partner, 80 credits, 11.9 per cent); Internal Security & Order (partner, 80 credits, 11.9 per cent); Force Generation & Mobilisation (partner, 80 credits, 11.9 per cent) [experiment_decisions_by_group]. By mode: partner 50 per cent, buy 33 per cent, build 17 per cent [experiment_decisions_by_group]. Concentration of spending (HHI) had a median of 0.184, and the most repeated action appeared in 27 per cent of rounds.
The leading domain by period: rounds 1 to 5, National Security; rounds 6 to 10, National Security; rounds 11 to 15, Governance & Integrity; rounds 16 to 20, Strategic Infrastructure; rounds 21 to 25, Strategic Infrastructure; rounds 26 to 30, Critical Technology [experiment_spend_by_period].
What the world did
A median simulation saw 5 shocks and 1 upside events. The most damaging per firing were S10 (30 firings in 30 simulations, −34.8 points each); S07 (60 firings in 30 simulations, −16.9 points each); S02 (60 firings in 30 simulations, −14.1 points each) [experiment_shocks]. Upside events fired 30 times across all simulations [experiment_shocks].
The groups that lost most to shocks, per simulation: Fiscal Capacity & Public Finance −3.38; Trade Facilitation & Logistics −3.21; Financial System Depth & Access −2.81; Labour & Employment −2.70 [experiment_shock_damage_by_group].
The edges that carried most change through the graph, per simulation: Force Generation & Mobilisation to Land Power (+0.63 points); Fiscal Capacity & Public Finance to Social Infrastructure (−0.66 points); Fiscal Capacity & Public Finance to Force Generation & Mobilisation (−0.62 points) [experiment_propagation_by_edge].
Where it ended
At 2026 the median rank is 61 (5th to 95th percentile 61 to 61), the median count of Tier 1 domains 0 (0 to 0) and the median tier rank 35; the resilient score, the mean score sum over simulations, is 638 [experiment_objectives].
Why
Without shocks the index ends +1.743 higher on average, so the shocks cost about 1.743 index points [experiment_probe_attribution].
Holding instead of following this method changes the index by −0.426: that is the method's worth against doing nothing [experiment_probe_attribution].
Removing any single one of the five largest actions changes the index by between −0.015 and +0.012, for example 1997 partner Internal Security & Order (14 credits) [experiment_probe_attribution]. The largest actions by credits come late, when income is highest, and are rarely the most valuable.
Removing the largest shock of a simulation raises the index by +0.563 on average [experiment_probe_attribution].
The replay probe reproduces the simulations exactly (index change 0.000000), so the attributions are clean [experiment_probe_attribution].
Surprises
tier_jump (warn): largest gain in one domain within five years: 6 tiers (30 simulations above 2).
retired_words (warn): e4-col/report.md: 'simulations' 1 time(s), first near line 38; use 'simulations'.
The simulation furthest from the median (seed 15) ends −0.02 from it, with 5 shocks and 1 upside events [experiment_outlier_simulations].
Comparison
This is the baseline (hold) experiment, or there is none for this nation in the batch.
Against history: from a reconstructed index of 9.85 the model ends at 8.75, where the 2026 ratings put it at 9.11. Group scores miss by 1.87 points on average, against 1.35 for assuming nothing changed (skill −0.39); the change in each domain has the right sign in 56 per cent of domains. Furthest below history: financial strength (−2.86); furthest above: national security (+3.19) [experiment_against_history]. The starting position is reconstructed, so part of the error is the reconstruction's.