World Solve

Even advanced AI systems can confidently state things that violate obvious physical logic, like objects falling upward or liquids not filling containers. This gap shows current AI still lacks a genuine model of how the physical world works.

Astronomical observations demand extra unseen mass, but candidate particles from extensions of the Standard Model remain undetected. New detector designs, astrophysical surveys, and theoretical models are needed to pin down its nature.

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.

Observations show billion-solar-mass black holes early in cosmic history, which standard growth models struggle to explain. Improved surveys of high-redshift quasars and simulations of direct-collapse scenarios are needed.

We have detected a handful of mergers, but their cosmic history and diversity remain unclear. Next-generation detectors with wider frequency coverage can map the gravitational-wave background.

Grand unified theories predict proton decay, yet experiments have not observed it. Larger underground detectors and longer observation times are needed.

Ultra-high-energy cosmic rays’ origins remain unclear, challenging acceleration models. Distributed detector arrays and multi-messenger astronomy could identify sources.

Alternative theories predict deviations that current experiments are only beginning to probe. More sensitive tabletop experiments are needed.

Simulations predict substructure that observations only partly confirm. Strong lensing and stellar stream measurements can probe these scales.

The Fermi paradox highlights tension between estimated probabilities and the lack of detected signals. Systematic, wide-band SETI and technosignature searches are needed.

Timing and sources of reionization remain uncertain. 21cm experiments and high-z galaxy observations can map it.

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

Indirect gravitational measurements confirm dark matter's existence, but direct detection experiments have failed to identify the constituent particle. Solving this is necessary to complete our fundamental model of physics.

Dark energy accounts for roughly 68% of the universe, yet its equation of state and microscopic nature remain complete mysteries. Precise mapping of cosmic expansion over time is crucial for predicting the ultimate fate of space-time.

Measurements of the cosmic microwave background yield a lower expansion rate than direct distance ladder measurements of modern galaxies. Resolving this discrepancy could reveal brand-new physics beyond the Standard Model.

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.

Matter inside neutron stars is crushed beyond atomic densities into unknown states like quark-gluon plasma. Multi-messenger astronomy combining X-ray observatories and gravitational wave detectors is needed to probe these conditions.

Cosmic strings are theoretical linear defects in space-time that could explain early cosmic structure formation. Advanced gravitational lensing networks are required to detect their unique space-bending signatures.

Some medications carry a risk of gradual liver damage that often goes undetected until routine screening or symptoms reveal significant harm has already occurred. More sensitive, earlier detection methods remain an unmet need.

TMJ disorders can cause persistent jaw pain and dysfunction that current treatments, from mouthguards to surgery, don't reliably resolve for every patient. A more effective, universal treatment approach remains undeveloped.