![image](fit){width="47.00000%" height="7.5cm"}   ![image](frw){width="47.00000%" height="7.5cm"}
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The numerical analysis performed above enforces the idea that strong viscous effects (happening for $\gamma _{eff}<2/3$) can be viewed as a consistent solution to the horizon and entropy paradox, by means of a power-law dynamics in the very early Universe evolution. We further make some considerations about the stability of the obtained solutions. In this regard, we observe that in [@carlmont] the problem of the stability of a flat isotropic Universe has been analyzed in presence of bulk viscosity, according to the Eckart formulation. In the direction forward in time (the same one we are interested here), it is shown how the Universe is stable under scalar perturbations. This result is expected to be maintained in the present formulation too, simply because the regulator $F(t)$ is large near the singularity (according to the ansatz (\[F\]). By other words, one can infer that the presence of $F$ simply enhances the effect fo the viscosity, preserving the stability properties derived in [@carlmont]. This conjecture acquires a reliable meaning in the considered power-law approximation of the solution, where the presence of the regulator can be easily restated in terms of an effective value for $\beta_{2}$ in the 