In Vector Monte Carlo Atmospheric Radiative Transfer Simulations, they take a Stokes vector, let's say [1,1,0,0] and multiply it with a matrix, with elements close to 1. But if there are much scattering events, then the continuus multiplication with a number less then one should cause the Stokes vector to decrease to zero. Does it mean there are very few scattering events in the model, or matrix elements can take a greater value than 1? If they are greater then one, how is it that the Stokes-vector elements don't go over 1? How does it work?