  It is useful to study the space of all cosmological models from a dynamical
systems perspective, that is, by formulating the Einstein field equations as a
dynamical system using appropriately normalized variables. We will discuss
various aspects of this work, the choices of normalization factor, multiple
representations of models, the past attractor, nonlinear dynamics in
close-to-Friedmann-Lemaitre models, Weyl curvature dominance, and numerical
simulations.
