How would be the world if there is no suffering?

Imagine a world (a planet with humans) without suffering that the people in there are always happy,nothing to worry about.What would be the characteristics of that world ? At least,Can we define the characteristics of that perfect world ? **Edit:** I got this question by listening to *Dhamma* on *Eight Worldly Conditions* (**Ashta Loka Dharma**). Either good or bad,every person have to experience profits,losses,praises,insulting ..etc.It is equal to a person in a heaven and also in a lower realm. If world have only 4 rules (only profits, praises ....),Would it be perfect ?