What futuristic work of fiction is humanity closest to becoming?

Lots of good suggestions so far, Brave New World and Don't Look Up would be right up there for me. But my #1 is this...

The Machine Stops (PDF) Written in 1909 so out of copyright, this book is so ahead of its time it makes remarkable reading today. The amount of things predicted that describe the modern day is incredible. It's also not that long, so well worth a read.

I do believe that a lot of aspects of The Ministry for the Future by K.S. Robinson have chances of becoming true.

The deadly heatwave in south Asia, governments going rogue and playing with geo engineering on their own, climate refugee camps and the general sense of too little too late.

But the book is fairly optimistic, so hopefully, people of the world getting together and accepting a new paradigm will come to be true.

1984

Horizon Zero Dawn: Total extinction by the 2060s because some mad, narcissistic Elon Musk guy overestimates himself and fucks it up for the whole world? Doesn't sound too far-fetched to me right now.

I'm going to go obscure here and say that the world of 2077 from the television show Continuum

It ran for a few seasons; I enjoyed it for the most part. Not the best, not the worst. But definitely in terms of the premise where Corporations have essentially bought out failing governments, leading to an advanced surveillance state, and anti-corporate terrorists, etc... etc...

Dune.

Not the cool parts, the Butlerian Jihad.

I'd have gone with WH40Ks war with the men of iron but there's absolutely no chance we reach golden age of technology levels before we fuck ourselves.

A combination of all the worst bits of the worst ones

All of the negatives from Metropolis 2001

Metropolis (2001): How Capitalism Produces Fascism

The Temporal Messages of Metropolis

Elon Musk = Duke Red

Lots of good responses in this thread so far, but I keep thinking of the newest Gibson trilogy with regards to "the jackpot" where the majority of the population dies from a series of "not quite the big one" pandemics and climate issues and society is taken over by the kleptocracy. I love Gibson's books, but I wish he would stop accurately predicting our demise.

The Simpsons

I've gotta go with Mad Max here. Between the words oil obsession, rising aggression and dumbing down of society I can't see it going any other way.

As an American I'd absolutely say Idiocracy, but that's just my little corner of humanity.

Blade Runner

Penultimate Truth. Predicted containing the cattle using fear of something that doesn't even exist in reality.

Can we choose? I'll pick the Matrix. Yes we are slaves to the machines, but at least they give us happy dreams

How far ahead do you want to go? The Borg are a more likely future phase of humanity than Star Trek's Federation, though without FTL travel, we're gonna be stuck crawling from rock to rock in our own neighbourhood for a very long time.

There's also a bit in old kid's TV show The Girl From Tomorrow where, at one point, something mucks up the timeline so badly that the future she comes from ceases to exist and all of the Earth's land ends up an uninhabitable desert, devoid of life. That seems pretty likely too.

These two things are not mutually exclusive either.

As bland and forgettable as it was, the film adaptation of "Tomorrowland."

The premise (or at least my takeaway) basically being that, we might have been headed toward a techno-utopia of optimistic and bright developments, but greed and cynicism took over the spirit of invention, and everyone collectively became cynical and pessimistic about the future as a result.

Technology and those who claimed to wield it became enemies of the people.

Many of our most popular "near future" stories and entertainment are about societal collapse, disaster, the worst of humanity turning on themselves, and technology being used for its worst purposes. We almost enjoy morbidly indulging in forecasting our own bad ending, over and over and over. Warnings became franchises co-opted by the bad powers they warned against.

Partially, we'll get a crappy future because we've all been conditioned and used to the idea that it's inevitable and there's nothing we can do about it. This reduces our will to fight it, and instead we settle for merely enduring it.

If we had hope and fire and a taste of something better, we'd stop giving in to doomerism and just accepting it when it keeps getting worse.

This is why I really like the emergence of Solar Punk. It's a hopeful and bright rebellion against endless neon acid rain tumbling down towering corporate fortresses, rusting everybody's work-leased cyber-limbs as they gig-work 24/7 to afford neural software updates.

Instead, it's about embracing communitarianism, careful stewardship of natural resources, sustainable existence in tandem with nature instead of against it, open and free knowledge to all, endless invention with human thriving in mind.

If people actually believed, not merely that's how it should be, but that it could be ...we could make some real progress.

I don't know about closest, but definitely most likely, Tank Girl. Basically, water and power will be extreme scarcities for the majority and a corporation that bottles up the water to keep it from becoming free through rain and owns all of central power grid will be the effective government. It will take a few more decades for the water to get bottled up by Nestlé, et al., and the water infrastructure to fail in more cities. And then the fossil fuel industry to run out of resources and collapse and thus leave only the few nuclear reactors as the only major power sources, without renewables investment, which can be grabbed by the water owners by saying they need the power to collect the water bottles and they need to "secure" the dangerous reactors with the military hardware they collected to protect "their" water sources from protesters and poor people over the years.

Wall-E by way of 1984.

I think that it'd have to be one of those countless near-future works that are set in what basically amounts to being the present-day world.

I think that if you're looking for something other than that, something more in a far-out setting, you'd need to ask something like "what futuristic work do you think society will most resemble in 200 years" or something like that. That forces things down the road a bit, and makes one pick among different predictions about how society will change in the future.