No Stupid Questions

Did you watch Shiny Happy People? Apparently Christian fundamentalists believe the world population can fit into Jacksonville, FL. There's the answer. Anyone who wants to start a war has to go live in Jacksonville. Build that wall!

Like others said, struggle is in human nature. But it is possible to shift it to other domains: art, science, exploration. To prevent this stuggle spill back into physical violence, there should be broad consensus on basic rules, effectively enforced.

So I'd say, build this consensus, which will probably need to rely on abundant renewable enengy, some form of UBI, equality, and stronger international institutions, but will not spotaneously evolve towards unsupportable preferences of some groups.

It's (theoretically) impossible -- you can't break someone's (ignorant and established) will/ideas/plans with words alone or treats. Most world leaders are megalomaniacs by heart, i.e they won't stop until they are done with what they want.

Equal distribution of wealth and power, along with trying to create universal standards of communication (I.E. speaking reading and writing) would help probably.

Plus universal access to education and birth control. And ENFORCING equality by making sure there is no such thing as inherited wealth. Each new generation would have to start form the same point. I know it might seem a little extreme, but I think it's the only way to prevent oligarchies, monarchies, and huge concentrations of power that distort society from forming.

Plus, guaranteed clean food, water, housing, and basic healthcare for all. Get rid of the reasons for conflict, and make sure those who want to start conflicts can't ever mass enough power to start wars and we won't have them. A lot harder to justify fighting when you personally have to do it all yourself because you can't order others to just do it for you.

Create an Artificial General Intelligence with the sole purpose of satisfying people's values through friendship and ponies.

You'll have to find a way to eliminate greed

Edit: or no people so you have nobody to start wars

I think the solution is to have enough renewable energy for all of humanity.

No hands for anyone. Possibly no feet too. Only the cooperative will survive.

Humans are gonna human unfortunately. Biologically I’m not convinced we are capable of eliminating war because humans are competitive by nature. To the point that there will always be one group or another trying to force its ideals onto another.

I’ve often thought about “what if we could snap our fingers and every weapon beyond that of a spear (technologically) was vanished, and any/every attempt to fashion something deadlier would fail/poof out of existence as well.”

That might stave off large scale war but there would still be tribal warring on a smaller scale I fear. Plus a ton of other issues that would arise from suddenly having no guns/missiles/projectiles/etc.

this is a bit grim but global-wide information control that shreds any information which will help the growth of the idea of overly patriotic but less enough to not kill the domestic culture (but i think, not necessarily always telling the truth). that will also promote the sense of global village and transnationalism. and relocate the idea of war to other rivalries like on sports or something, idk.

basically limit the free will without showing it. I can't think if it's gonna happen or this even possible.

As long, there are rankings in society, money, and power and human emotions – conflict will never end.

A death match between the presidents / prime ministers of the rival countries. The country of the winner of that match will win the war, and the country of the loser has to deal with the following consequences.

Impossible. There is 1-5% of the population who are born anti-social. It's very difficult to socialise them, and some never do. They are vastly overrepresented in prisons. These people sometimes get into positions of power. Particularly in societies which value authoritarianism, like Russia and China. This cannot be helped. Instead, we must mitigate the effects of their reach. NATO, for example, is an excellent way to stymy these dictators.

Well effectively, it would entail an all-encompassing global spying machine that gathers all data possible, and imprisons anyone who deviates from the expected baseline. (Wouldn’t end well for me either.) You have to remove most individuality to remove reasons for fighting. And even if you imprison 999 false leads to capture just one instigator, that’s the only way to ‘guarantee’ a fairly high level of security.

So what I’d say we need is 1984 or Мы levels of oversight to have any chance of curtailing conflict for good.

EDIT: oh, and re-education. Lots and lots of re-education.

That's another rule. No wishes containing the word 'all'. Guaranteed ironic consequences.

I don't think anyone's going to miss wars.

Star Wars, Thumb wars, wow, Storage Wars!

Easy enough, we just build a jail so big that we can fit the entire world inside of it, boom no more crime.

Put the ones in charge to the front line.

Put everyone in a Matrix and let the A.I. lead the humanity

set aside a space for any country that wants to war, they have to deploy troops/etc there & fight there. anything goes, any atrocity or tech someone wants to use. but everyone is always watching - cameras and sensors everywhere and 24x7x365 coverage on a freely accessible dedicated stream/tv channel paid for by taxes levied against the populace of any country that chooses to war in that space.

it'd be the most highly watched stream ever, forever.

use nuclear bombs on everyone who doesn't comply

The only way to permanently end war is universal omnicide.

Democracy and the rule of law. Sounds banal but it's the best shot we have. People crave power. People who have power want more of it, which is the underlying cause of a lot of wars. People who have power will do absolutely everything to keep it, including starting or prolonging wars.

Therefore people who want power - regardless of the system of government - are inherently unsuited to use it responsibly. The solution? Give power only on a strictly time limited basis and within a framework of transparency and control. If you misuse the power lent to you, you will be held responsible.

This won't prevent shitty governments from happening, but at least it provides a way to get rid of said shitty governments. So, far from a perfect solution but the only realistic one.

Humans are ultimately animals. We strive for dominance on an individual and societal level. We can run societies in a way that helps to minimize violent conflict but I don't think you can ever eliminate it. Not while still being what we know as human.

Colonizing space

It would take way more but the first step it would be to remove religions. And not only because most are not peaceful in principle but also because some religions see others as a target. Even small difference in beliefs could spark a vicious and long standing conflic, like Catholics Vs protestants.

An unfortunate combination of somehow achieving a post-scarcity, non-capitalist society with robust resource and population control.

But people are greedy and want "freedoms" that run counter to this.

Humans need to evolve to a state where love, compassion and being helpful to others is ingrained. At the moment we're just clever beasts.

Sadly though, I don't think we have enough time.

Establish a global trade network in a way that everyone is completely dependent on everyone else.