Secular evolution of the GJ436 system. The simulation was performed including only the dynamical features. See text for initial conditions. Top left: eccentricity on a long time scale of 8 Gyr where the two-part behavior is clear. Top right: eccentricity on an intermediate time scale of 50 Myr where the Kozai-Lidov oscillations are apparent. Bottom left: semi-major axis on secular time scale. Bottom right: 3D spin-orbit angle on secular time scale.