Scenario Bravo — status quo — carries the highest probability because no single actor in the current governance structure (APMA, CPME, ABFAS, ABPM, the schools) has sufficient incentive to absorb the short-term cost of forcing change. Political inertia is not neutral. It is a slow vote for Bravo's 50-year outcome: profession bifurcation.
A PGY-3 resident in 2026 will be 56 years old in 2050 — still practicing. The 50-year outcomes in this matrix are not abstractions for future generations. They are the career arc of everyone currently in training. The resident who understands these scenarios is the one who can influence which one occurs.
The difference between Scenario Alpha and Scenario Echo is who controls the terms. Alpha is a profession governing itself toward a hard but survivable transition. Echo is that same transition imposed at federal speed with no political buffer. Every year of Bravo makes Echo more likely — and Alpha less achievable on the profession's own terms.