base rate:
Formal martial law has never been declared at the federal level in the continental United States in the modern era (~150+ years). The closest precedents are Lincoln during the Civil War and Hawaii during WWII — both during existential wartime conditions radically different from today. Even during 9/11, the Civil Rights era, COVID, and Jan 6, martial law was never seriously considered at the federal level. The base rate across ~59 presidential terms is approximately 2/59 ≈ 3.4%, but those instances involved active war conditions not present today, so the applicable base rate for peacetime is effectively 0/~45 terms ≈ 0%.
evidence updates:
No concrete steps taken (strong DOWN confirmation). Legal experts see no clear path (strong DOWN). Insurrection Act ≠ martial law (important distinction keeps probability low). Trump's 2020-2021 consideration but non-action suggests even under extreme stress he did not cross this line (moderate DOWN). Elevated polarization and potential 2028 election dispute push UP slightly (~1-2%). Loyalist appointments (Hegseth) push UP very slightly (~0.5%). Overall, no evidence meaningfully elevates from the very low base rate.
combination method:
Used conditional probability logic: P(martial law) = P(severe crisis) × P(Trump invokes martial law | crisis) × P(institutions fail to block | invocation attempt). Each conditional is low, and their product is very small. Cross-checked against weighted average of sub-questions (~7.5%) which overestimates because it doesn't properly account for the need for ALL conditions to be met simultaneously.
final:
The probability of formal martial law being declared before Jan 20, 2029 is very low — approximately 3%. This reflects: (a) no historical precedent in modern peacetime, (b) no concrete steps taken, (c) legal experts seeing no path, (d) strong institutional barriers, (e) the critical distinction between martial law and aggressive use of existing emergency powers like the Insurrection Act. The main upside risk is an unforeseen catastrophic crisis combined with institutional failure, but even then, conventional emergency powers would likely be used instead of formal martial law.
ensemble:
{'ensemble_count': 3, 'perspectives': {'base_rate': {'p_yes': 0.03, 'confidence': 0.82}, 'evidence_driven': {'p_yes': 0.03, 'confidence': 0.82}, 'contrarian': {'p_yes': 0.03, 'confidence': 0.82}}, 'spread': 0.0, 'individual_p_yes': {'base_rate': 0.03, 'evidence_driven': 0.03, 'contrarian': 0.03}}