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
open
Mexico, North America
Historical records increasingly exist in fragile digital formats that may outlive current software, vendors, and hardware. The unresolved problem is preserving public memory across decades of technological change. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
north-america
mexico
public
digital
informal
settlements
protection
archives
against
extinction
historical
records
society-governance
systems
across
institutions
climate-environment
Digital consultation can produce large volumes of participation while still failing to influence decisions. The challenge is creating governance processes where consultation changes outcomes and does not become symbolic theater. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
society-governance
consultation
informal
settlements
making
public
meaningful
scale
digital
produce
large
systems
technology-computing
across
climate-environment
institutions
As benefits move online, errors can become opaque and difficult to reverse. The challenge is creating fast, accessible grievance systems that help ordinary people correct eligibility mistakes without requiring legal expertise. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
asia
indonesia
systems
grievance
informal
settlements
trustworthy
redress
digital
welfare
benefits
move
society-governance
public
climate-environment
across
economics-resources
Digital commerce, cloud services, and AI platforms can generate value across borders while escaping clear tax authority. The challenge is creating fair tax rules that smaller states can enforce without being excluded from the digital economy. The challenge is especially acute for low-resource administrations, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
asia
indonesia
digital
low-resource
administrations
managing
cross-border
taxation
fairly
tax
commerce
cloud
society-governance
systems
public
across
low
open
South Africa, Africa
Digital commerce, cloud services, and AI platforms can generate value across borders while escaping clear tax authority. The challenge is creating fair tax rules that smaller states can enforce without being excluded from the digital economy. The challenge is especially acute across fragmented municipalities, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
africa
south-africa
digital
fragmented
municipalities
managing
cross-border
taxation
fairly
tax
commerce
cloud
society-governance
systems
across
public
climate-environment
open
Mexico, North America
Future governments may depend on private firms for cloud services, AI tools, digital identity, and critical infrastructure software. The unresolved problem is designing procurement rules that preserve interoperability, portability, and long-term public control. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
north-america
mexico
procurement
systems
informal
settlements
building
resist
vendor
lock-in
future
governments
society-governance
public
across
climate-environment
digital
Future states will need identity systems that work for migrants, displaced people, informal workers, and citizens missing formal paperwork. The challenge is building identity infrastructure that expands access without becoming a surveillance or exclusion tool. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
technology-computing
asia
bangladesh
identity
informal
settlements
designing
rights-preserving
digital
residents
documents
systems
future
society-governance
public
climate-environment
without
across
open
Global / Unspecified, Global
Digital contracts can potentially be modified after signing in ways that aren't always immediately detectable without specialized forensic review. Building this verification directly into standard contract systems remains incompletely adopted.
technology-computing
global-unspecified
contract
yet
build
technology
reliably
verify
whether
ai-generated
legal
has
philosophy-ethics
mathematics-logic
resolved
haven
way
don
open
Global / Unspecified, Global
Old photographs and videos can be digitally altered using AI in ways that are difficult to distinguish from genuine historical restoration, risking the distortion of the historical record. Forensic tools for detecting this kind of manipulation remain underdeveloped.
technology-computing
global-unspecified
historical
photographs
yet
build
technology
reliably
detect
has
been
alter
philosophy-ethics
whether
mathematics-logic
haven
open
Global / Unspecified, Global
Attackers can sometimes obtain or forge digital certificates that make malicious software appear legitimately signed and safe to install. Strengthening the verification processes behind these certificates remains an unresolved security challenge.
technology-computing
global-unspecified
certificates
software
make
malicious
appear
don
have
scalable
way
prevent
whether
philosophy-ethics
resolved
determine
agreed
open
Global / Unspecified, Global
Digital signatures can be technically valid while still being applied under coercion, fraud, or through compromised credentials, and current systems don't fully verify true signer intent. Closing this verification gap remains an unresolved legal-technical challenge.
technology-computing
global-unspecified
digital
applied
signer
yet
build
technology
reliably
verifies
whether
signature
philosophy-ethics
systems
mathematics-logic
society-governance
resolved
haven
open
Global / Unspecified, Global
Some companies design cancellation processes to be far more complicated than sign-up, discouraging customers from leaving even when they want to. Consistent regulation or design standards preventing this practice remain unevenly enforced across countries.
society-governance
global-unspecified
cancellation
don
have
widely
adopted
way
prevent
digital
subscription
services
whether
philosophy-ethics
resolved
determine
agreed
open
Global / Unspecified, Global
Accessibility efforts often focus more on physical and sensory disabilities than on cognitive accessibility, leaving many users with learning or cognitive differences underserved by mainstream digital design. Closing this specific accessibility gap remains an underaddressed challenge.
technology-computing
global-unspecified
cognitive
users
disabilities
physical
sensory
accessibility
don
have
widely
adopted
whether
philosophy-ethics
way
determine
resolved
agreed
open
Global / Unspecified, Global
Blockchain can record ownership transactions, but it doesn't inherently verify that the underlying digital artwork itself is original or hasn't been duplicated elsewhere. Solving this deeper authenticity verification remains an unresolved technical gap.
technology-computing
global-unspecified
blockchain
verify
authenticity
digital
don
have
scalable
way
art
collectibles
philosophy-ethics
whether
resolved
determine
agreed
mathematics-logic
open
Global / Unspecified, Global
Older adults are often left behind as digital tools and platforms evolve quickly, with educational resources struggling to keep up with both the pace of change and different learning needs. Closing this generational digital literacy gap remains an ongoing challenge.
social-civic-problems
global-unspecified
digital
literacy
keep
pace
older
haven
solved
make
education
rapidly
technology-computing
whether
philosophy-ethics
african
remains
mathematics-logic
open
Global / Unspecified, Global
Digital voting could make elections faster and more accessible, but security concerns and lack of public trust have kept most large-scale elections reliant on paper-based or hybrid systems. A truly trusted digital alternative remains unbuilt.
society-governance
global-unspecified
digital
elections
voting
trusted
yet
build
fully
reliable
tamper-proof
system
technology-computing
whether
philosophy-ethics
mathematics-logic
systems
haven
open
Global / Unspecified, Global
Documents with rich formatting, fonts, or embedded content can still look different or break entirely when opened in different software or on different devices. A truly universal, faithful format remains elusive despite decades of digital document use.
technology-computing
global-unspecified
truly
universal
format
documents
software
devices
different
build
file
preserves
whether
philosophy-ethics
mathematics-logic
haven
determine
resolved
open
Global / Unspecified, Global
Once a photo or video is edited or generated, there's often no reliable way to trace it back to prove whether the original was authentic. Building this verification into cameras and platforms from the start remains an unsolved industry challenge.
technology-computing
global-unspecified
way
don
have
widely
adopted
verify
authenticity
digital
photos
videos
philosophy-ethics
whether
determine
resolved
agreed
prevent
open
Global / Unspecified, Global
Ageing populations, urban diets, and pollution will drive surges in cardiovascular disease, diabetes, cancer, and chronic respiratory conditions. Scalable chronic-care models, digital coaching tools, and preventive policy reforms are needed.
society-governance
global-unspecified
policy-reform
will
non-communicable
diseases
dominate
mortality
low-income
countries
2040
ageing
populations
health-biology
health
climate-environment
non
communicable
open
Global / Unspecified, Global
Rising stress, social isolation, and economic precarity will increase depression, anxiety, and cognitive disorders, especially among youth. Scalable digital therapeutics and integrated community mental-health ecosystems are needed.
economics-resources
global-unspecified
mental-health
health
disorders
will
among
mental
neurodevelopmental
largest
burdens
rising
health-biology
society-governance
remains
african
access
haven