The Invasions of Genes and Plants

Abstract

Diffusion in physics and chemistry follows simple laws, in principle, already set out by Fourier and Fick. Diffusion of living beings, and even more so the spread of immaterial goods, such as languages or information is more complex. Simple equations would fail since a living being or an idea may face different conditions after every step in diffusion. Here, we often have to resort to computer simulations, which can encompass the details.