We explore the frequency of individual opinion changes in our model. Consistent with Figure
3, opinion changes are recorded according to external actions because only external actions can be observed by the public; i.e., agents that publish their opinions at least twice are taken into consideration. In Figure
8, no extremeness is introduced into our discrete model, but agents driven by activity rarely change their ideas, coinciding with the actual situation in Figure
3. When α=1α=1, the model reduces to the voter dynamics, but agents do not have continual opinion interactions as they do in the voter model due to the influence of individual activity. Increasing the nonlinear parameter αα, only agents with a large fraction of opponents will reconsider the other opinion, so
agents tend to keep their original opinions. We realize that even if agents only update opinions a few times, most agents will eventually adopt the majority opinion.