I know this guy. He lives as a courier in Hamburg.

That he does, my friend. That he does.

(This is an in-joke. And a very funny one, too.)

Why would you want to eliminate anger, or even jealousy and loneliness for that matter? No emotion is intrinsically good or bad, that comes from the meaning you make of it and the actions you choose to take because of it. Anger, when it is anger directed at something real, especially is a wonderful thing, without which humanity would cease to be a fraction of its former self. If you could see hypocrisy and sycophancy winning over integrity and real work and not get angry, then these things would fester and grow into the travesties that are modern political parties, churches and what-have-you. And as they did, your better world would only slide back into the poverty and misery of ages worse still than ours. And even regardless of the social consequences, what kind of life would it be for the individual if there was nothing to ever struggle against? I know anger isn’t a central emotion in a lot of people’s lives, but is for enough that a world without it would be a worse world.

I certainly wouldn’t want to eliminate anger altogether. No, that’s a part of what makes us human. But perhaps irrational anger – this is something that it would be nice to get rid of. But even in a perfect society, it’s likely to stay – even if in diminished form.

As for jealousy – well, I think jealousy is a bad thing, but it often proceeds from much better feelings. Would a world without jealousy be better? Quite probably. Is it likely to happen? No, because we’re human. But perhaps we can build a world where we’re not driven by jealousy on so many levels.

Finally, loneliness – yes, I would prefer a world in which no-one was lonely for long periods of time. But it’s part of who we are, part of being intelligent, and it will stay that way. But we can build a world in which there is support for the lonely, and in which loneliness doesn’t occur for absurd reasons.