Figure 7. The dynamics of memory loading for two cultures (cooperative and complex) and three levels of BGC (15 – very strong, 40 – moderate, 800 – absent). Averages from 10 model runs are shown. The left top diagram (Cooperative culture, G=800) depicts the situation when the runaway brain-culture coevolution did not start, brain and MC remained very small, and the culture consisted of very few simple memes.