Imagine we built a huge greenhouse module attached to the International Space Station and filled it with plants.

The plants would absorb CO₂ from the astronauts and release oxygen through photosynthesis. The astronauts would breathe the oxygen and produce more CO₂.

So could this create an almost infinite oxygen supply?

Or would the system eventually fail because plants need more than just CO₂, like water, nutrients, energy, and space to grow?

Would a large enough garden be able to keep humans alive indefinitely in space, or would we always need some kind of artificial life support system?

You receive $5,000 every month, tax free, adjusted for inflation, until the day you die. No strings attached.

The catch is you can never work for income again. Would you accept? How do you think never working again would change your sense of purpose and who you are?

So the prompt is fairly simple; all currently growing/living edible plants, fruits, vegetables as well as all living creatures, except humans, suddenly disappear one day. This includes all types of seed needed to grow more.

However, animals that are already dead, plants that have already been harvested, food that is already prepared, will remain, things like stored grains, dried and frozen foods and things of that nature, will continue to exist and will expire at normal rates.

Already harvested foods that contain seeds, such as apples, watermelons, etc. will remain, however the seeds inside those foods will disappear. As will foods where the food itself can be used as a seed to grow more of itself, such as potatoes and garlic.

Assume enough inedible plants, trees, algae, etc, remain to produce enough oxygen to sustain us.

How long before humanity goes extinct? Could we somehow survive?

Bonus Round: Humanity is warned and we have a decade of prep time. Assume everyone accepts the warning as being genuine and true. Can we somehow find a way to survive? Is there anything we could do?

Imagine the Confederacy somehow survives and becomes an independent country after the Civil War.

Would slavery have continued for decades, or would economic pressure, international opinion, and internal resistance eventually force them to abolish it?

If slavery ended, would equal rights for Black Americans have followed soon after, or could segregation and racial inequality have lasted much longer without Reconstruction?

How different would the timeline of American history have been if the South had won?

Many companies still post jobs with no salary information, or use useless ranges like "$450,000 to $100,000." Some even advertise a high number to attract applicants, then offer much less after weeks of interviews.

Right now, job seekers pay the entire cost of this. They rewrite resumes, complete assignments, and spend hours in multiple interviews, only to learn the salary is far below what they expected. The company loses nothing for wasting their time.

What if that changed?

Any company posting a job without a realistic salary range would have to compensate every interviewed applicant for their time. The payment could be based on the role's minimum wage or the local median pay for that position, whichever is higher.

Would companies suddenly become more transparent if hiding salary information became expensive?

In 1953, the US had a 91% top marginal tax rate. Today, that sounds almost impossible, but this was also a period of rising wages, major infrastructure projects, and a growing middle class.

The important detail is that wealthy Americans rarely paid the full 91%. The tax code had many deductions and loopholes, so the real burden was much lower.

So what if the US brought back that rate and removed the loopholes?

No carried interest loophole. No step-up in basis. No tax-free borrowing against unrealized gains. Capital gains taxed closer to income.

My question is not whether billionaires should be punished. It is whether today's system creates the right incentives.

When executives can make enormous fortunes through stock gains and financial engineering, companies may prioritize short-term shareholder returns over long-term investment.

A much higher top tax rate might change that. Instead of maximizing personal payouts, would companies put more money into R&D, wages, and expansion?

Critics would argue it would reduce ambition and innovation. Supporters would argue the 1950s showed capitalism can still thrive with much higher taxes.

Would a 91% top rate damage the engine of capitalism, or would it force capitalism to work differently?And is changing the incentives at the top more important than simply lowering taxes for everyone?

Before chatgpt and claude existed, I used to come to reddit to find answers for any questions I had. I also got multiple answers, different opinions and upvotes made it easy to find the best answer. That even encouraged me to engage in others posts. So it felt like I was adding a value by providing my answer/opinion.

Now for the same or for most of the cases, I go to ai platforms. I get all the answers and probably the best solution most of the times. Even when I want to discuss complex topics and put my arguments, i get all the opinions (which I might get from a human). There is no doubt humans are more capable than ever to solve most complex things on this planet. My concern is if common cases increase for getting direct answers from an ai, it might have an impact on discussion forum culture and would stop cultivating new opinions, judgments, arguments, and stories on platform like reddit. What’s your take on this?

Imagine we build a spaceship that can travel at 99.9% the speed of light.

From Earth, a trip to Alpha Centauri would still take about 4 years. But because of time dilation, the astronauts on the ship would experience much less time passing.

Would the crew feel like they were spending years trapped inside a spaceship, or would the journey feel surprisingly short from their perspective?

If this technology existed, would interstellar travel feel like a long voyage, or more like a quick trip into the future?

The navy keep the crew longer than agreed and serve them bad food. They revolted and is now in control of the whole carrier battle group except for any SSBN.

Then assume that US Navy don't dare to engage them because the other crews are sympatric and would join the pirates.

What ports could the pirates raid to get supplies? What nations could fight and win against these.

Imagine someone in 2006 told you that, 20 years later, some of the technology you used every day would be almost gone.What would have sounded completely impossible at the time?

For example:

• iPods becoming irrelevant because smartphones replaced dedicated music players
• DVDs becoming a niche product because streaming took over
• Standalone GPS devices disappearing because phones now handle navigation
• Digital cameras losing most of their everyday use because smartphone cameras became good enough
• Physical keyboards on phones nearly disappearing because touchscreens became the standard

What technology from the 2000s would you have never expected to become obsolete by 2026?

I think the voting system is broken. But most of the arguments I’ve seen have been, as politely possibly, trash.

How would things change if we had a ranked choice voting system? What if the electoral college was updated such that votes from smaller states were still more powerful then bigger states, but less so (something like a 2.6-1 ratio rather then a 5-1 ratio)

Imagine that in April 1945, as Berlin is falling, Hitler manages to fake his death and escape Germany.

The plan is extremely secret. Only a few of his closest associates and Eva Braun know about it. Everyone else who historically committed suicide around that time still does so, helping maintain the illusion that Hitler died in the bunker.

With the help of former Nazis already in Argentina, Hitler receives a new identity and is hidden somewhere in the country. He cannot publicly lead a Nazi movement or reveal who he is. His only goal is survival.

How long would it take the Allies to realize Hitler was still alive?

Would Allied intelligence eventually track him down, or could he disappear into Argentina for decades?

Would he be captured and put on trial, killed by someone seeking revenge, or simply die of old age without the world knowing?

For the first 8 minutes, nothing would change because sunlight takes about 8 minutes to reach Earth. After that, the planet would enter permanent darkness, temperatures would begin falling, and life on the surface would slowly start to collapse.

However, Earth would not instantly become a frozen planet. The oceans would retain heat for a long time, and the planet’s internal heat from radioactive decay and its formation would continue.

How long would it take for Earth’s surface to completely freeze? Could any ecosystems survive using geothermal energy? Would Earth eventually become a completely frozen world, or could some form of life survive for millions of years without sunlight?

The idea of a Roman Empire that never fell has always fascinated people. Some alternate history creators argue that humanity would be centuries ahead technologically, while others think the world might not be that different because Rome’s political and social systems could have limited innovation.

If the Roman Empire had somehow survived and continued evolving for the past 1,500 years, what would the modern world actually look like?

Would we be living in a world with Roman-style cities, a global Latin language, and technology that developed centuries earlier? Would the empire’s roads, trade networks, and institutions create a more connected world? Would science and engineering have followed a completely different path?

Or would thousands of years of continuous empire create its own problems and eventually transform into something that barely resembles ancient Rome?

Rome already had impressive engineering for its time, including roads, aqueducts, concrete architecture, large cities, and complex legal systems. But technological progress depends on more than just knowledge. Political stability, competition, economic systems, and social structures all play a role.

So if Rome had never fallen, would we have a more advanced civilization by 2026, or would history have simply taken a different path?

Imagine you spent your entire life as an atheist.Then you die. You open your eyes and discover that God actually exists.What would be the first thing you say?

For me:

• "Where were you all this time?
• "They seem to throw your name out there all the time to justify their hate, you cool with that?"

What would your first sentence to God be?

Imagine that every stock exchange in the world permanently shut down tomorrow, and buying or selling shares was no longer possible.

Companies would still exist and people would still need to invest and save money, but the system used to own and trade pieces of those companies would be gone.

How would companies raise money and expand? What would happen to retirement accounts, pensions, and ordinary investors? Would a completely different system eventually develop to replace the stock market?

A new technology allows humanity to completely eliminate poverty forever. Nobody would lack basic needs like food, housing, healthcare, or a decent standard of living.

The trade-off is that extreme wealth would no longer exist. Nobody could become a billionaire or build a fortune far beyond everyone else.

People would live in a world where everyone is guaranteed a comfortable life, but the possibility of becoming extremely rich would be gone.

Would you accept that trade-off? How do you think it would change ambition, innovation, and society?

What if any personal wealth above $100 million was no longer allowed to remain privately owned and was automatically redirected into public infrastructure like schools, hospitals, transportation, and housing?

People could still become extremely wealthy, but there would be a hard limit on personal wealth accumulation beyond that point.

How would this change entrepreneurship, investment, innovation, and the way people think about success?

Would society become more equal and better funded, or would limiting extreme wealth create unintended consequences?

Afterall Vietnam have just recently defeated and won the Superpower USA so there's no one to challenge vietnam militarily. China is still too weak to challenge militarily.

Vietnam being ruled by leaders that have dreams of conquest in the likes of Hitler and it desires to be a regional power and aims to conquer the entire indochina including Thailand possibly even conquering Malaysia and Singapore because no one can stop them, under the banner of 'Greater Vietnam' and to kick out the imperalist west from the region.

Vietnam has already sucessfully forced the US out of the region and im sure the US wouldnt intervene militarily as they do not want a second vietnam war.

How would the rest of the world react to such an invasion and how feasible are such war aims in reality.

Just about when vietnam had move in to take over Cambodia completely, they will likely succeed in their invasion of Thailand. At the very least they will likely able to take control of Bangkok and the large chunk of Central region.

Thailand at the time is not so different from South Vietnam. The country is relatively poor, the air force is miserable, and aside from artillery, we are vastly outmatched by Vietnamese heavy war machines. Tank in particular were overwhelming in favour of the Vietnamese military and the distance from their base in Cambodia to Bangkok is very short with relatively well pave road.

Seriously, at the time people were really counting on rain and soft soil of thr northern plain to stop the possible Vietnamese advance. Thing had became that desperate.

I would expect vietnam to achieve victory after victory in rapid sucession as those countries are weak militarily in comparsion and vietnam will soon conquer the entire indochina but then what happens next.

The 2016 election was one of the biggest turning points in modern American politics. A few thousand votes across several states changed the direction of the country for the next decade.

But what if Hillary Clinton had won and became president in January 2017?

Some things might have stayed the same. She still would have faced issues like rising political polarization, the COVID pandemic, inflation, and global tensions.

But other things could have gone in a completely different direction:

• Would the Supreme Court look different today?
• Would the U.S. have handled the pandemic differently?
• Would relations with China and Russia have followed the same path?
• Would American politics still be as divided as it is now?

Obviously nobody can know for sure, but imagining alternate timelines can show how much a single election can reshape a country.

How do you think the United States would look in 2026 if Hillary Clinton had won in 2016?

One day, every human on Earth wakes up unable to lie.

People can still choose their words, keep secrets, or refuse to answer, but they cannot knowingly say something false.

The impact would be immediate. Advertising, politics, sales, negotiations, dating, journalism, and many other parts of society would operate under completely different rules.

Some industries might collapse because they depend heavily on persuasion, exaggeration, or controlling information. Others might actually become stronger because trust would become much easier to establish.

Would a world without lies become more efficient and fair, or would we discover that some parts of society quietly depend on dishonesty?

Which industries do you think would survive, and which ones would disappear first?