Configuration of the magnetic field strength  | B |  (shown is the isosurface corresponding to a value of 0.53 in normalized units) in a simulation with current-dependent resistivity, temperature-dependent ionization rate and constant collision frequencies. Because of the nonlinearity of the system, after only 50 Alfvén times the turbulence is fully developed and the initial well ordered structure a) is highly disarranged c), all trace of the initial configuration being “forgotten”. (After 100 Alfvén times, the turbulence has mostly decayed again, cf. Fig. 5.)