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|Title||STONE AGE CULTURE AND DIFFUSION IN ANNEALED RANDOM MEDIA|
Symbolic and technological complexity of human artifacts increased drastically around 45,000 years ago. Powell, Shennan and Thomas (2009) explained it using a computer simulation of a demographic model through an increase of the population density. We have simplified the computer demographic model to be similar to standard physics models (percolation, random walks) for a large square lattice. Demography is a major determinant in the maintenance of cultural complexity and its variation in regional subpopulation density and/or migratory activity results in spatial structuring of cultural skill accumulation. Computer simulations have been used to facilitate information spread by random walkers over dozens of distances between human bands (extended families) of stone-age humans, distributed randomly on a large square lattice such that each lattice site is randomly occupied with probability p and empty with probability 1− p, and random walkers move among the occupied sites only. In this paper we allow also these bands to move randomly on the lattice. This improvement has been done by letting the communities perform slower random walks on the lattice such that no sharp percolation threshold exists for the random walks of the walkers within groups of occupied neighboring sites..
|Published in||International Journal of Recent advances in Physics (IJRAP)|
|Series||Volume: 2, Number: 1|
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