The weak influence of w 0 in BMA fitting is demonstrated in Figure value of 1000 kJ/mol. The lines are coincident, showing that w 0 has little e↵ect on the BMA fitting outcomes, as no prominent variation is observed. This holds as long as w 0 > 2E 0 a , so an arbitrary high value can be used. Due to the insensitivity of BMA fitting to the value of w 0 when it is high enough, we henceforth assign it a value of 1000 kJ/mol in the reaction rate calculation for convenience.