Observations on versions of the Discrete Bak-Sneppen Model
The discrete Bak-Sneppen model is a Markov chain describing the co-evolution of n species arranged in a one-dimensional circular lattice with periodic boundary conditions. Each species i at time t is assigned a fitness value xi(t) ∈ {0,1} and the system evolves through local interactions: at each time step, a species with fitness 0 is selected, and its fitness—along with that of its two neighbors—
