World Solve

portion sizes remaining too big remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.

Contracts translated using automated tools can sometimes contain subtle errors that create legal ambiguity between parties speaking different languages, and verification processes haven't fully adapted to catch these risks. Closing this legal exposure gap remains unresolved.

Search engines have improved at understanding context, but still frequently misinterpret nuanced or ambiguous queries, returning results that miss what the user actually wanted. True intent understanding remains an unresolved challenge in information retrieval.

Dual-use technologies and geopolitical competition create ambiguities under the Treaty’s peaceful-use principles. Transparency and monitoring tools can support confidence-building.

Dual-use technologies and geopolitical competition create ambiguities under the Treaty’s peaceful-use principles. Transparency and monitoring tools can support confidence-building.

Big Bang models suggest equal amounts of matter and antimatter, yet the observable Universe is dominated by matter. Precision measurements of CP violation and new physics at high energies could explain the imbalance.

General relativity and quantum field theory conflict at extreme densities, such as inside black holes and at the Big Bang. Progress in string theory, loop quantum gravity, and holographic dualities could lead to a consistent framework.

This relic of the Big Bang has not been directly detected. Novel detectors and cosmological analysis methods are needed.

Observations show massive black holes existing just a few hundred million years after the Big Bang, far too fast for standard accretion models. Direct collapse seed theories or primordial black hole physics need verification.

The 1967 Outer Space Treaty is ambiguous regarding commercial resource extraction and private property. Clear, enforceable international frameworks are needed to encourage private investment in off-world mining.

Many global bodies depend heavily on voluntary contributions rather than fixed dues, letting big funders push their own priorities ahead of the institution's broader mission. This undermines the independence these institutions are supposed to have.

Some mathematical series behave predictably, while others sit in ambiguous territory where convergence is difficult to prove definitively. Fully resolving these cases remains an active area of mathematical research.

Voice assistants often misinterpret complex or ambiguous requests, especially involving sarcasm, local dialects, or multi-step instructions. Bridging this understanding gap remains a persistent limitation of current systems.

Evidence suggests Mars once had liquid water, a key ingredient for life, but no mission has yet found conclusive proof of past or present microbes. Answering this remains one of planetary science's biggest open questions.

Self-referential systems often run into paradoxes, and while specific fixes exist for particular cases, no fully general and complete solution has been proven for every possible self-describing system. This unresolved tension remains central to mathematical logic and computer science.

People often prefer clear narratives and resolution, even when it means adopting interpretations that aren't fully supported by the actual evidence available. This unresolved tension touches on both personal psychology and the broader ethics of belief formation.

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.

Cement production alone accounts for a huge share of global carbon emissions, yet it remains central to nearly all construction. A low-carbon alternative that's just as strong and cheap would be one of climate policy's biggest wins.

Direct air capture exists, but it's still far too expensive and energy-intensive to make a dent in global emissions. Making it cheap enough to scale is one of the biggest levers left for slowing climate change.

According to our best theories, matter and antimatter should have destroyed each other completely after the Big Bang. Yet matter clearly won out, and we still don't know why.