Some possibilities for the long-term evolution of the GJ 163 planetary system over 1 Myr, including tidal effects with Δt_p = 10⁵ s. Time scales are inversely proportional to Δt (Eq. (4)), so 1 Myr of evolution roughly corresponds to 1 Gyr with Δt_p = 100 s (Q_p ~ 10³) or 10 Gyr with Δt_p = 10 s (Q_p ~ 10⁴). We show the ratio P_c/P_b of the orbital periods of the two inner planets (top) and their eccentricities e_b (red) and e_c (green) (bottom). We use three different sets of initial conditions: Table 2 (left); Table 2 with a_c = 0.060679 and Δt_c = 5 × 10⁷ s (middle); Table 4 (right).