Initial medium responders learn to diagnose and correct classical errors in executed contraction strategies signaling mating fitness. (A) Repetition coding prevented errors in executed serial contraction signals from exceeding estimated single bit-flip errors in absolute mean average Boltzmann entropy [executed (light blue) and bit-flipped (dark blue) strategy (0,0,0), executed (light orange) and bit-flipped (dark orange) strategy (0,0,1), executed (lime green) and bit-flipped (green) strategy (0,1,0), executed (lavender) and bit-flipped (purple) strategy (1,0,0), executed (pink) and bit-flipped (red) strategy (0,1,1), executed (gray) and bit-flipped (black) strategy (1,1,0), executed (turquoise) and bit-flipped (teal) strategy (1,0,1), executed (gold) and bit-flipped (brown) strategy (1,1,1)]. (B) Modest differences in mean average Boltzmann entropy between strategy planning and execution stages were expelled by ciliates when learning to detect and correct errors in modal (orange) and non-modal (blue) serial contraction signals. Modest negative trends in work and associated power functions show that serial strategies experienced refrigeration cycles of increasing magnitude to maintain constant entropy levels. (C,D) Trends in mean average efficiencies and coefficients of performance for modal (gold and pink, respectively) and non-modal (purple and brown, respectively) serial contraction signals corresponded with work and power functions. (E) Trends in the mean average fidelity of Boltzmann entropy between strategy planning and execution stages indicate repetition coding was equally successful in protecting modal (red) and non-modal (green) serial contraction strategies from error. Ciliates learn via Markov Szilárd-engine processes to improve fidelity between strategy planning and execution stages for all strategies with each corrective cycle. All trend lines for panels (B) through (E) are fitted to second-order polynomial equations. Black trend lines represent composites of modal and non-modal serial strategy trends. Symbol T in panels (A) and (B) is temperature in °K.