World Solve

Heart muscle doesn't regenerate well once damaged, often leaving survivors with permanently reduced heart function. Finding a way to regrow healthy heart tissue could transform recovery for millions of survivors.

Artificial lighting confuses migration patterns, hunting behavior, and reproduction cycles in many nocturnal species, yet city lighting keeps expanding with growth. A widely adopted, wildlife-friendly lighting standard remains missing.

Cooling saves lives during extreme heat, but most air conditioners rely on energy sources and refrigerants that contribute to climate change. A low-emission cooling solution accessible to poorer regions remains urgently needed.

Poor farming practices and deforestation are wearing away fertile topsoil faster than nature can rebuild it, threatening long-term food production. A scalable solution to reverse this trend remains unresolved globally.

Fishing fleets can evade detection in vast, poorly monitored ocean areas, undermining conservation efforts meant to protect fish populations. Better real-time monitoring at sea remains a critical unsolved gap.

Many products marketed as biodegradable still break down into tiny plastic particles that persist in the environment for years. A truly safe, fully compostable packaging material remains elusive at scale.

Raising cattle and other livestock produces a significant share of global methane emissions, yet meat remains a major part of diets worldwide. A lower-emission farming method that doesn't require giving up meat entirely remains unsolved.

Plastic waste in the ocean is well documented, but pinpointing exact sources at a granular level remains difficult, making targeted prevention harder. Better tracking could focus cleanup and policy efforts where they matter most.

Faster memory tends to be far more expensive, forcing constant trade-offs in computer design between speed and cost. Solving this trade-off could make faster computing broadly accessible.

Personal information is scattered across emails, cloud drives, apps, and devices, with no single reliable way to search across all of it. A unified, private personal search tool remains unbuilt.

Old software often becomes unusable as operating systems and hardware change around it, forcing costly rewrites or abandonment. Designing for genuine long-term durability is rarely prioritized.

Despite decades of robotics research, folding laundry or loading a dishwasher remains far harder for robots than tasks like chess or driving. Everyday physical tasks turn out to be a much harder problem than expected.

Once deployed, a model could be subtly altered or poisoned without obvious signs, potentially changing its behavior in harmful ways. There's no simple, universal way yet to verify a model is exactly as it was originally trained.

3D printing has transformed prototyping, but printing functional circuits and electronics remains unreliable and limited. Solving this could make custom electronics production dramatically faster and cheaper.

Search results are ranked mostly by popularity and relevance signals, not by actual accuracy, letting false but engaging content rise to the top. A better system needs to weigh truthfulness, not just engagement.

Scammers constantly find new ways around call-blocking systems, and phone networks still let large volumes of fraudulent calls through. A truly effective, adaptive solution remains elusive.

These particles carry more energy than anything we can produce on Earth, and we still don't know exactly what cosmic event launches them our way. Identifying the source could reveal entirely new astrophysical processes.

Larger asteroids are easier to spot years ahead, but smaller ones capable of serious regional damage often go undetected until they're very close. Expanding detection capability remains a quiet but serious safety gap.

Living without normal gravity weakens astronauts' bones and muscles over time. Practical, affordable ways to simulate gravity in space stations remain mostly untested at scale.

Fast radio bursts flash briefly and then vanish, and we still don't fully understand what causes them. Some theories point to exotic stars, but no explanation is fully confirmed yet.