What is interesting is that, if we turn this opinion change to the max, there are mathematical models showing that people should converge to the average (i.e. m

What is interesting is that, if we turn this opinion change to the max, there are mathematical models showing that people should converge to the average (i.e. moderate) opinion of the system. However our model, via the four parameters we can play with, allows for a narrow range of their values to avoid this consensus reaching. And it is in this narrow range that we can fit best observational data from Twitter.