I wouldn't change one thing. Sorry for being such a boring realist but you can't take away one thing and expect things to be the same.

- I would've said make people smarter, but then it might get boring.

- I would've said make people care more, but then we'd start feeding all the needy african countries (more than we already do) and eventually due to overpopulation we'd have food shortages and/or people would have to stop eating meat (yes, I know how cynical that is, it's not thought out anyway).

- No borders? We would all be clawing for the best farmland, best hunting grounds or a spot by the sea where fishing is best. Oops, a war might even occur. If we all got along and shared these prime spots for fishing/farming? These spots wouldn't last very long because we'd overfish/overhunt/overfarm (I think the problem is called the public commons or some crap like that I forgot).

- I don't know, maybe we can go back to some communal system where we produce our own food, and everybody gets together at night and sings songs by the campfire (because otherwise we'd need nuclear electricity to fuel our entertainment, such as the pc you're using right now). We definitely couldn't sustain our present population that's for sure... Say goodbye to half your friends and family.

- Selfishness and greed might've come from our desire to protect our own family/tribe and I'd say in most respects it hasn't changed. Who doesn't want the best for their children? There are definitely cases where it's one individual that's power hungry and doesn't give a shit about anything else, but otherwise it's too easy to just dismiss it like that.

- I though communism was a nice idea when I was about 11 or 12, the whole idea of everybody getting what they needed. My mother, in one flash of wisdom told me:"Well, no one will do anything because there's no motivation." Things will bever be equal between people, there's always going to be something (looks, abilities, spouse/girlfriend/boyfriend, etc...) that will set us apart and possibly create envy and the ensuing problems anyway. We're not robots.