The Perfect World would be without any disease, crimes, sexual abuse, drugs, pollution, and no conflicts. The best thing is there will be peace on Earth and everyone is going to be nice to each other so for example no racism and there will be happiness. People will be treated equally what I mean by people will be treated equally is that since there are going to be no crimes and pollution, people are going to live longer so the world will be over

Because then what's the point if there's going to be no functioning so it's not going to work any more, there will be no development in any field.

 
populated so there will be some people who might don't have any houses as I've already said above the world is going to be over populated there will be no functioning.