why should we find tittle-tattle about the private lives of minor celebrities, royalty and politicians of such overwhelming interest that it can drive the starving children of Somalia and the war-ravaged cities of former Yugoslavia off the front pages of even the most sedate of newspapers?
Extrapolating from these data, we find that the amount of time required to maintain cohesion within a group of 150 would be something in the region of 35 to 45 per cent.
A more plausible suggestion is that language evolved to enable humans to integrate a larger number of individuals into their social groups.
by talking to one person, we can find out a great deal about how other individuals are likely to behave, how we should react to them when we actually meet them and what kinds of relationships they have with third parties. All these things allow us to coordinate our social relationshhips within a group more effectively. And this is likely to be especially important in the dispersed groups that are characteristic of humans.
This could explain our fascination for social gossip in the newspapers, and why gossip about relationships accounts for an overwhelming proportion of human conversations.
The theory explains why gossip about other people is so fascinating; it explains why human societies are so often hierarchies; it predicts the small size of conversation groups; it meshes well with our general understanding of why primates have larger brains than other mammals, and it agrees with the general view that language only evolved with the appearance of Homo sapiens.
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