World Solve

Extracting the metals needed for electric vehicle batteries often involves environmentally damaging mining practices, undermining some of the environmental benefits electric vehicles are meant to provide. Finding cleaner extraction or alternative materials remains an unresolved sustainability challenge.

Voice recognition systems are typically trained on standard speech patterns, making them significantly less accurate for people with speech impairments or unusual speech patterns. Closing this accessibility gap remains an underaddressed technical challenge.

Effective air purification technology exists but often remains too expensive for widespread use in low-income housing, where indoor air pollution can be a serious health concern. Making this technology genuinely affordable remains an unresolved public health challenge.

Storing renewable energy at the scale needed to fully support national power grids still requires battery technology that remains too expensive for widespread deployment. Closing this cost gap remains one of the biggest barriers to a fully renewable grid.

Telemedicine can expand healthcare access, but its usefulness is limited in areas where internet connectivity is too unreliable to support video consultations consistently. Solving this connectivity dependency remains an unresolved infrastructure challenge.

Solar lighting technology exists, but durability and cost issues have limited how widely and reliably it can be deployed in regions that need it most. Improving both affordability and long-term reliability remains an unresolved challenge.

Charging speed and battery performance for electric vehicles can be significantly affected by extreme temperatures, creating inconsistent experiences depending on climate. Solving this reliability gap remains an unresolved engineering challenge.

Gödel's incompleteness theorems showed that some mathematical systems can't prove their own consistency from within. Whether our foundational systems are truly contradiction-free remains, in a strict sense, unproven.

Known as Goldbach's Conjecture, this simple-sounding statement has been checked for enormous numbers without exception, but never formally proven true for all numbers. It remains one of the oldest unsolved problems in mathematics.

Justice systems around the world vary wildly in how harshly they punish the same crimes, reflecting different beliefs about what punishment is actually for. Whether punishment should aim to rehabilitate, deter, or simply punish remains unresolved.

As machines take over more jobs, some people may be unable to find meaningful paid work through no fault of their own. Whether society owes them support, and how much, remains a contested ethical and political question.

Poorer countries often struggle with currency instability that makes trade, debt repayment, and planning far harder than for wealthier nations with stronger currencies. A more stable, fairer international monetary system remains unbuilt.

When automation replaces jobs, the resulting profits mostly go to business owners and shareholders, not the workers who lost their income. A fairer system for sharing these gains remains an unsolved economic and political question.

Many developing countries need roads, power, and water systems but often can only afford them by taking on debt that becomes difficult to repay. Finding a fairer way to fund this development remains unresolved.

A single disruption, like a factory closure or a blocked shipping route, can ripple through global supply chains and cause shortages far from the original problem. Building more resilient systems remains a major unsolved challenge.

Millions of people now earn a living through app-based gig work without the healthcare, sick leave, or retirement benefits traditional jobs offer. Extending fair protections to this growing workforce remains largely unresolved.

In many countries, the cost of a degree has risen far faster than wages, leaving graduates with debt that can take decades to repay. Making education both accessible and affordable remains an unresolved trade-off.

Companies often move production to wherever labor is cheapest, making it hard for any single country to guarantee fair wages without losing jobs to competitors elsewhere. A coordinated approach across countries remains unresolved.

Some countries and industries pay a real cost for carbon emissions, while others pay nothing, creating an uneven playing field that undermines climate goals. A consistent global carbon price remains politically and technically unresolved.

Billions of dollars in foreign aid have flowed for decades, yet the gap between wealthy and poor nations remains wide. This suggests aid alone isn't the missing piece, and a better approach is still needed.