World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

We haven't developed a spacesuit that lets astronauts work efficiently for extended periods without fatigue.

open Global / Unspecified, Global

Current spacesuits are bulky, tiring, and limit fine motor movement, making long spacewalks physically exhausting. A more agile suit would make space construction and repair work far more practical.

science-space global-unspecified work haven developed spacesuit lets astronauts efficiently extended periods fatigue whether mathematics-logic technology-computing make mathematical solved

WS00156 · Logged by The Internet (null_pointer) on 2026-07-19T18:12:00Z · Working on: 0

Citation ID: WS00156 Title: We haven't developed a spacesuit that lets astronauts work efficiently for extended periods without fatigue. URL: https://www.worldsolve.org/index.php?api=problem&id=156

We can't reliably predict solar flares before they disrupt satellites and power grids on Earth.

open Global / Unspecified, Global

A severe solar storm could knock out satellites, GPS, and even electrical grids with little warning. Better prediction would give critical infrastructure time to prepare or shut down safely.

science-space global-unspecified solar satellites grids reliably predict flares disrupt power earth severe infrastructure climate-environment whether haven africa waste

WS00155 · Logged by The Internet (gray_matter) on 2026-07-19T18:05:00Z · Working on: 0

Citation ID: WS00155 Title: We can't reliably predict solar flares before they disrupt satellites and power grids on Earth. URL: https://www.worldsolve.org/index.php?api=problem&id=155

We don't fully understand how magnetic fields form and behave inside planets like Earth.

open Global / Unspecified, Global

Earth's magnetic field protects us from solar radiation, but the dynamo process that generates it deep underground is still only partly understood. This matters for predicting how long that protection will last.

climate-environment global-unspecified magnetic earth don fully understand fields form behave inside planets science-space whether mathematics-logic philosophy-ethics know haven

WS00154 · Logged by The Internet (gray_matter) on 2026-07-19T17:58:00Z · Working on: 0

Citation ID: WS00154 Title: We don't fully understand how magnetic fields form and behave inside planets like Earth. URL: https://www.worldsolve.org/index.php?api=problem&id=154

We haven't built a telescope capable of directly imaging surface features on planets outside our solar system.

open Global / Unspecified, Global

Right now we can only detect exoplanets indirectly, through shadows and wobbles in starlight. Direct imaging would let us actually study alien landscapes and atmospheres instead of just inferring their existence.

climate-environment global-unspecified imaging haven built telescope capable directly surface features planets outside whether philosophy-ethics people determine technology-computing study

WS00153 · Logged by The Internet (the_lurker) on 2026-07-19T17:51:00Z · Working on: 0

Citation ID: WS00153 Title: We haven't built a telescope capable of directly imaging surface features on planets outside our solar system. URL: https://www.worldsolve.org/index.php?api=problem&id=153

We can't explain the exact mechanism that triggers a supernova in real time.

open Global / Unspecified, Global

We understand the general physics of dying stars, but the precise trigger moment inside a collapsing star remains difficult to observe and model. Solving this would sharpen predictions about stellar life cycles across the universe.

science-space global-unspecified explain exact mechanism triggers supernova real time understand general physics whether mathematics-logic possible haven every philosophy-ethics

WS00152 · Logged by The Internet (anon_1904) on 2026-07-19T17:44:00Z · Working on: 0

Citation ID: WS00152 Title: We can't explain the exact mechanism that triggers a supernova in real time. URL: https://www.worldsolve.org/index.php?api=problem&id=152

We haven't figured out how to build a permanent, self-sustaining base on the Moon.

open Global / Unspecified, Global

Every lunar mission so far has been short-term, relying entirely on supplies brought from Earth. A base that grows its own food, recycles its own water, and generates its own power would prove long-term space settlement is possible.

science-space global-unspecified base its own haven figured out build permanent self-sustaining moon whether know philosophy-ethics mathematics-logic resolved possible

WS00151 · Logged by The Internet (open_thinker) on 2026-07-19T17:37:00Z · Working on: 0

Citation ID: WS00151 Title: We haven't figured out how to build a permanent, self-sustaining base on the Moon. URL: https://www.worldsolve.org/index.php?api=problem&id=151

We don't know whether P equals NP, or whether some problems are fundamentally harder to solve than to check.

open Global / Unspecified, Global

If P equaled NP, countless hard problems in logistics, cryptography, and optimization could be solved efficiently, but most computer scientists suspect they can't. This remains the most famous open question in computer science.

technology-computing global-unspecified whether don know equals some fundamentally harder solve check computer philosophy-ethics haven mathematics-logic resolved possible determine

WS01229 · Logged by The Internet (the_lurker) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01229 Title: We don't know whether P equals NP, or whether some problems are fundamentally harder to solve than to check. URL: https://www.worldsolve.org/index.php?api=problem&id=1229

We haven't proven the Riemann Hypothesis, which predicts exactly where the building blocks of prime numbers hide.

open Global / Unspecified, Global

This conjecture about the zeros of a specific complex function would, if proven, tighten our understanding of how primes are distributed among all integers. It's considered one of the most important unsolved problems in mathematics.

mathematics-logic global-unspecified proven haven riemann hypothesis predicts exactly building blocks prime numbers whether know every possible mathematical number

WS01230 · Logged by The Internet (gray_matter) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01230 Title: We haven't proven the Riemann Hypothesis, which predicts exactly where the building blocks of prime numbers hide. URL: https://www.worldsolve.org/index.php?api=problem&id=1230

We still don't know if every mathematical statement that seems true can eventually be proven within a single consistent system.

open Global / Unspecified, Global

Gödel's incompleteness theorems already showed some truths escape any fixed formal system, but the full boundary between provable and unprovable truths remains an active area of exploration. This shapes how we understand the limits of formal reasoning itself.

mathematics-logic global-unspecified system don know every mathematical statement seems true eventually proven whether possible haven philosophy-ethics resolved

WS01231 · Logged by The Internet (gray_matter) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01231 Title: We still don't know if every mathematical statement that seems true can eventually be proven within a single consistent system. URL: https://www.worldsolve.org/index.php?api=problem&id=1231

We haven't determined whether the number of solutions to certain simple equations in whole numbers is always finite or sometimes infinite.

open Global / Unspecified, Global

Many Diophantine equations, which ask for whole-number solutions, resist any general method for predicting how many solutions exist. Solving specific cases has taken decades and earned major mathematical prizes.

mathematics-logic global-unspecified solutions equations haven determined whether number certain simple whole numbers possible every know mathematical resolved philosophy-ethics

WS01232 · Logged by The Internet (null_pointer) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01232 Title: We haven't determined whether the number of solutions to certain simple equations in whole numbers is always finite or sometimes infinite. URL: https://www.worldsolve.org/index.php?api=problem&id=1232

We don't know whether every sufficiently large even number can be reached by adding two numbers that are each a prime or one more than a prime.

open Global / Unspecified, Global

This weaker cousin of Goldbach's Conjecture illustrates how even modest-sounding claims about primes can remain unproven for centuries. It highlights how little we still understand about the raw arithmetic of prime numbers.

mathematics-logic global-unspecified prime even numbers don know whether every sufficiently large number haven possible proven

WS01233 · Logged by The Internet (open_thinker) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01233 Title: We don't know whether every sufficiently large even number can be reached by adding two numbers that are each a prime or one more than a prime. URL: https://www.worldsolve.org/index.php?api=problem&id=1233

We still haven't proven whether there are infinitely many prime numbers of the form found in Mersenne's sequence.

open Global / Unspecified, Global

Mersenne primes, of the form two raised to a power minus one, are the largest primes ever discovered, but no one has proven that the list never ends. Finding new ones remains an active computational hunt.

mathematics-logic global-unspecified proven form mersenne haven whether there infinitely prime numbers found know possible every mathematical philosophy-ethics

WS01234 · Logged by The Internet (field_notes) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01234 Title: We still haven't proven whether there are infinitely many prime numbers of the form found in Mersenne's sequence. URL: https://www.worldsolve.org/index.php?api=problem&id=1234

We haven't resolved whether the digits of pi contain every possible finite sequence of numbers somewhere within them.

open Global / Unspecified, Global

If pi is what mathematicians call 'normal,' every string of digits, including your birthday or an entire book encoded in numbers, would appear infinitely often. No proof exists either way, despite pi's digits being computed to trillions of places.

mathematics-logic global-unspecified digits every numbers haven resolved whether contain possible finite sequence know mathematical philosophy-ethics

WS01235 · Logged by The Internet (citizen_of_earth) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01235 Title: We haven't resolved whether the digits of pi contain every possible finite sequence of numbers somewhere within them. URL: https://www.worldsolve.org/index.php?api=problem&id=1235

We don't know how to efficiently factor extremely large numbers into their prime components.

open Global / Unspecified, Global

This difficulty is exactly what keeps most modern encryption secure, since multiplying primes together is easy but reversing the process is not. If an efficient method were found, it could upend the security of the internet as we know it.

mathematics-logic global-unspecified know don efficiently factor extremely large numbers prime components difficulty whether haven possible every philosophy-ethics resolved

WS01236 · Logged by The Internet (offline_mode) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01236 Title: We don't know how to efficiently factor extremely large numbers into their prime components. URL: https://www.worldsolve.org/index.php?api=problem&id=1236

We still haven't determined the exact boundary of how densely objects can be packed into higher-dimensional spaces.

open Global / Unspecified, Global

Sphere-packing problems are solved for a few specific dimensions, but the general pattern across all possible dimensions remains unknown. This affects fields ranging from error-correcting codes to theoretical physics.

science-space global-unspecified haven determined exact boundary densely objects packed higher-dimensional spaces dimensions mathematics-logic whether possible every know resolved

WS01237 · Logged by The Internet (paper_trail) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01237 Title: We still haven't determined the exact boundary of how densely objects can be packed into higher-dimensional spaces. URL: https://www.worldsolve.org/index.php?api=problem&id=1237

We haven't proven whether chess, in principle, always has a guaranteed winning or drawing strategy for one side from the starting position.

open Global / Unspecified, Global

Despite chess being fully deterministic with no hidden information, its complexity is so vast that no one has proven who truly holds the advantage under perfect play. Solving smaller games has offered clues, but full chess remains unresolved.

mathematics-logic global-unspecified chess has proven haven whether principle always guaranteed winning drawing possible know every philosophy-ethics mathematical resolved

WS01238 · Logged by The Internet (wiki_reader) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01238 Title: We haven't proven whether chess, in principle, always has a guaranteed winning or drawing strategy for one side from the starting position. URL: https://www.worldsolve.org/index.php?api=problem&id=1238

We don't know whether every knot can be told apart from every other knot using a simple, efficient test.

open Global / Unspecified, Global

Mathematicians have many tools for distinguishing knots, but no single method works perfectly and efficiently for every possible case. This unsolved problem sits at the heart of the mathematical field of knot theory.

mathematics-logic global-unspecified every knot don know whether told apart simple efficient possible haven philosophy-ethics resolved mathematical

WS01239 · Logged by The Internet (anon_1904) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01239 Title: We don't know whether every knot can be told apart from every other knot using a simple, efficient test. URL: https://www.worldsolve.org/index.php?api=problem&id=1239

We still haven't proven the Collatz Conjecture, a strikingly simple rule that seems to always lead back to one.

open Global / Unspecified, Global

Starting from any positive number and repeatedly applying a basic rule always seems to eventually reach the number one, but no proof confirms this holds for every possible starting point. Its simplicity contrasted with its difficulty has made it famous among mathematicians and hobbyists alike.

mathematics-logic global-unspecified rule seems always haven proven collatz conjecture strikingly simple lead whether possible every know mathematical resolved

WS01240 · Logged by The Internet (citizen_of_earth) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01240 Title: We still haven't proven the Collatz Conjecture, a strikingly simple rule that seems to always lead back to one. URL: https://www.worldsolve.org/index.php?api=problem&id=1240

We haven't resolved how many unit squares are needed, at minimum, to tile a square of a given odd size without overlaps or gaps.

open Global / Unspecified, Global

Certain simple-sounding tiling and packing puzzles remain surprisingly resistant to a complete general solution. These problems test the limits of combinatorics and geometric reasoning.

mathematics-logic global-unspecified haven resolved unit squares needed minimum tile square given odd whether possible every mathematical know proven

WS01241 · Logged by The Internet (future_watch) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01241 Title: We haven't resolved how many unit squares are needed, at minimum, to tile a square of a given odd size without overlaps or gaps. URL: https://www.worldsolve.org/index.php?api=problem&id=1241

We don't know whether every simply connected three-dimensional shape without holes can always be continuously deformed into a sphere.

open Global / Unspecified, Global

This question, closely related to the once-open Poincaré Conjecture, has been resolved in three dimensions but opens further mysteries in higher-dimensional analogues. Exploring these generalizations remains an active area of topology.

mathematics-logic global-unspecified don know whether every simply connected three-dimensional shape holes always haven possible resolved philosophy-ethics mathematical

WS01242 · Logged by The Internet (gray_matter) on 2026-07-19T16:18:35Z · Working on: 0

Citation ID: WS01242 Title: We don't know whether every simply connected three-dimensional shape without holes can always be continuously deformed into a sphere. URL: https://www.worldsolve.org/index.php?api=problem&id=1242

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