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Limits RegistryExplore by question
Collections of Limits.
Programmatic field guides built from the Registry’s published records. Start with a theme, then follow each record to its evidence, claims, and frontier history.
Fundamental Limits of Physics
Published physical bounds on matter, motion, information, and the behavior of the universe.
360 published Limits →02Open Limits in Computing
Unresolved frontiers in computation, algorithms, complexity, storage, and networks.
36 published Limits →03Proven Limits in Information Theory
Accepted information-theoretic bounds on communication, coding, compression, and signal recovery.
40 published Limits →04Limits of Artificial Intelligence
Theoretical and empirical boundaries on learning systems, models, agents, and AI performance.
44 published Limits →05Unsolved Limits in Biology
Open biological frontiers spanning genomes, cells, organisms, evolution, and living systems.
48 published Limits →06The Physical Limits of Energy
Limits on energy density, conversion, transport, efficiency, and the useful work available in physical systems.
370 published Limits →07Recently Proven Scientific Limits
The newest published records whose accepted claims establish or sharpen a scientific frontier.
1004 published Limits →08Limits of Chemistry
Measured and theoretical boundaries on atoms, molecules, reactions, and materials.
84 published Limits →09Frontiers in Materials Science
Strength, conductivity, fracture, phase, and energy-density limits across engineered materials.
36 published Limits →10Earth and Climate Frontiers
Extremes and boundaries recorded across Earth’s atmosphere, oceans, climate, and geology.
5 published Limits →11Medicine and Human Physiology
Documented boundaries on human performance, lifespan, dosage, and physiological response.
5 published Limits →12Mathematical Limits
Open and proven boundaries in combinatorics, number theory, geometry, and algorithms.
27 published Limits →