Leibniz's reasoning is inclined towards inconsistencies, and at times, incoherence. Moreover, Leibniz's formulation of us living in “the best possible world” is difficult to quantify when, in modernity, you see an ample share of the world living in unbearable circumstances (v.g., I flush my toilet everyday with water cleaner than most of the world's drinking water). To explain to someone that the reason they are living in squalor is for the “greater good” would be derisory. Hence, one can easily understand why Voltaire so effortlessly lampooned Leibniz on his “best possible world”