I think that the world would be close to perfect if there was no homelessness, poverty, pollution drugs, nuclear weapons, starvation, terrorism, or teen sexuality.   People would be a lot nicer, people would probably get a lot more stuff like houses with stuff like electricity, water etc. , good clothes, food to put on peoples tables, toys for kids and more. The air would be very clean because their would be no factories to pollute it. There would be no drugs and people would not die at an early age. If there wasn't any diseases people wouldn't get them and they wouldn't die as early. And if there is no nuclear weapons than there wouldn't be any wars and people wouldn't die.