Repository of problems worth solving
World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.
Publicly citable
Every problem has a stable citation code for reference and discussion.
Filtered by relevance
Search by category, geography, status, and keywords.
Builder-oriented
Use the repository to find startup ideas, policy leads, and research agendas.
4194Total
4194Open
0Solved
9Humans
easy access to guns 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.
easy
access
guns
establishing
robust
other
Public agencies will buy models, datasets, inference services, and automated workflows from vendors whose systems may not be easy to inspect. The unresolved problem is creating contract standards that make public AI procurement auditable, portable, and lawfully contestable. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
society-governance
asia
bangladesh
standards
procurement
informal
settlements
designing
open
contracting
public
systems
agencies
technology-computing
climate-environment
across
institutions
open
Global / Unspecified, Global
Cookie consent banners have become a near-universal nuisance without necessarily giving users meaningful, easy-to-understand control over their data. Redesigning this system to be both genuinely protective and user-friendly remains unresolved.
philosophy-ethics
global-unspecified
cookie
consent
protective
haven
found
way
prevent
website
systems
being
whether
resolved
mathematics-logic
determine
technology-computing
open
Global / Unspecified, Global
Many smart home and industrial devices ship with weak security because manufacturers prioritize low cost over protection, creating easy targets for hackers. Fixing this at scale requires an industry-wide shift that hasn't happened yet.
technology-computing
global-unspecified
devices
haven
found
way
fully
secure
internet
things
cheap
mass-produced
philosophy-ethics
whether
mathematics-logic
resolved
make
open
Global / Unspecified, Global
Most software vulnerabilities trace back to common coding mistakes that better language design could prevent from the start. Despite decades of research, mainstream programming still makes these mistakes easy to make.
technology-computing
global-unspecified
programming
make
don
have
languages
writing
secure
bug-free
code
default
whether
philosophy-ethics
way
determine
resolved
agreed
open
Global / Unspecified, Global
Passwords remain widely used despite being easy to steal or forget, and alternatives like biometrics or hardware keys haven't achieved universal, trusted adoption. A truly seamless and secure replacement remains unbuilt at global scale.
climate-environment
global-unspecified
haven
trusted
found
way
make
password-free
authentication
universally
available
passwords
whether
philosophy-ethics
mathematics-logic
resolved
determine
Easy consumer credit access without matching financial literacy is pushing many families into unsustainable debt cycles. Financial literacy apps integrated with lending platforms could reduce default risk.
technology-computing
asia
debt
household
levels
rising
rapidly
several
fast-growing
asian
economies
financial
global-unspecified
haven
african
social-civic-problems
remains
whether
open
Global / Unspecified, Global
Early detection dramatically improves skin cancer survival rates, but many people lack easy access to dermatology screening. A cheap, widely available detection tool could catch far more cases before they become dangerous.
health-biology
global-unspecified
skin
cancer
early
don
have
scalable
way
detect
simple
affordable
whether
philosophy-ethics
determine
resolved
agreed
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
philosophy-ethics
possible
resolved
every
open
Global / Unspecified, Global
Known as the P versus NP problem, this asks whether problems whose solutions are easy to verify are also easy to find in the first place. Answering it would reshape computer science, cryptography, and optimization overnight.
mathematics-logic
global-unspecified
easy
whether
also
don
know
every
math
check
solve
known
philosophy-ethics
haven
resolved
possible
open
Global / Unspecified, Global
AI systems built in one country are used worldwide, but there's no shared international rulebook governing how they should behave. Without cooperation, regulation ends up fragmented and easy to bypass.
society-governance
global-unspecified
agree
regulate
countries
different
laws
values
systems
built
country
worldwide
whether
philosophy-ethics
resolved
haven
determine
don