I believe you missed my point. I think it would be futile to attempt to decide on what would constitute an ideal world, because it is such an impossibility. Why bother?
A few years ago, when I was younger, less cynical and more idealistic, I would have loved to get my head round such concepts, especially with friends sitting around smoking and drinking ourselves into higher planes of consciousness (and unconsciousness), but although it was fun, ultimately we got nothing but half baked waffle sounding out through the small hours.
It seems that most grand ideas or 'the big questions', all seem to be surrounded by an impenetrable wall of rationality, which hides the answers in perpetuity. You can certainly give your brain a good work-out trying to suss them, but ultimately, if you don't leave them alone, they can just drive you crazy.
One of my latest insights, which I posted a while back and got no replies to, was the thought that what we consider as being logical in this earthly realm, actually becomes illogical when we try to apply it to certain things like god, the universe, infinity, etc. It's as though the ultimate questions to these concepts are unanswerable, because we are applying human logic and known laws of physics. And it got me to thinking, is logic all it's made out to be?
Most humans are peaceful, logical, rational people and yet they can never stop killing each other and they are ruining the planet for future generations, ensuring that disasters and diseases will flourish in their grandkids times. They fight and murder over ideologies and yet they are all hippocrites. They have Justice systems that are not just, that rely on printed, out of date words, that sells freedom to the highest bidders, regardless of guilt. All this and more and still, we are eradicating diseases and reaching for the stars, our intellect and compexity it seems, knows no bounds, except when we come to those biggies. I wonder if that's the way it always was. Maybe we got it wrong... developed the wrong side of the brain?