Why T CrB's outbursts ignore its orbital schedule

T Coronae Borealis is a symbiotic binary that alternates between nova eruptions and long outburst phases, prompting the question: do these events trigger at specific orbital positions? Statistical analysis of 150+ years of optical data finds no significant phase-locking for outburst onset, peak, or end. The result suggests accretion-disk dynamics, not binary geometry, governs when the system erupts.