  Attractor, supposed to be one of the possible answer for the early
applicability of hydrodynamics in the evolution with different initial
conditions, has attracted great attention to the fast decreasing of degrees of
freedom in heavy ion collision. We found attractor behaviors for 1+1D viscous
hydrodynamics with general rapidity distribution based on MIS theory.
Meanwhile, we also observe that a rapid expansion in the fluid velocity is
essential for a rapid early time attractor.
