Information content as a function of look ahead, m. (a) Mutual information with k-threshold equal to 2. Mutual information of 50 surrogates is shown as a green line, and the envelope of the 3σ the fluctuation of the surrogates is shaded yellow. Note that the look ahead axis begins at m = 1. (b) Significance of the mutual information as a function of look ahead. The significance is elevated for m = 1 and 2, indicating that successive flares have a relationship.