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.
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4194Total
4194Open
0Solved
9Humans
open
Mexico, North America
As identity, payments, records, and service portals become central to state capacity, failures will produce large-scale disputes. The unresolved problem is setting up fast, fair, and trusted systems to resolve them. This becomes particularly difficult in informal settlements, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
north-america
mexico
state-capacity
institutions
public
informal
settlements
creating
dispute
resolution
digital
infrastructure
fair
systems
technology-computing
governance
Urban growth, migration, and climate change will outpace traditional master planning. The challenge is designing governance that can revise land use, service delivery, and infrastructure priorities continuously without becoming arbitrary. This becomes particularly difficult in post-conflict institutions, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
asia
bangladesh
climate-change
institutions
governance
change
post-conflict
building
cities
faster
plans
urban
growth
public
climate-environment
systems
conflict
open
United States, North America
Autonomous spacecraft may make split-second avoidance decisions using imperfect data and proprietary software. The unresolved problem is assigning responsibility, proving fault, and compensating affected parties across jurisdictions. The design must remain functional when standards, trade routes, data access, and diplomatic cooperation are unreliable. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.
technology-computing
north-america
united-states
autonomous
spacecraft
liability
collisions
under
geopolitical
fragmentation
data
may
make
economics-resources
climate-environment
society-governance
systems
infrastructure
Autonomous spacecraft may make split-second avoidance decisions using imperfect data and proprietary software. The unresolved problem is assigning responsibility, proving fault, and compensating affected parties across jurisdictions. The solution must work with limited capital, intermittent services, and local maintenance capacity. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.
technology-computing
autonomous
spacecraft
liability
collisions
low-income
communities
may
make
split-second
avoidance
economics-resources
climate-environment
society-governance
systems
quantum
infrastructure
science-space
Future governments will need near-real-time visibility into commitments, arrears, off-budget liabilities, and contingent risks. The open problem is building financial transparency systems that ordinary citizens and auditors can actually use. This becomes particularly difficult in informal settlements, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
asia
bangladesh
public
informal
settlements
making
finance
legible
real
time
risks
future
institutions
systems
climate-environment
governance
As more government activity moves online, corruption may shift from visible cash handling to invisible data manipulation, access control, and procurement capture. The challenge is detecting abuse in systems that look efficient on the surface. This becomes particularly difficult in informal settlements, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
resilient
systems
informal
settlements
creating
anti-corruption
digital
states
government
activity
public
technology-computing
institutions
across
corruption
Public services will increasingly depend on rapidly updated models and decision pipelines. The unresolved problem is keeping these systems lawful, understandable, and corrigible as they evolve faster than formal regulations. This becomes particularly difficult in informal settlements, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
africa
nigeria
public
services
informal
settlements
designing
adaptable
governance
emerging
will
increasingly
systems
institutions
technology-computing
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
Future political manipulation may be conducted by large networks of bots, synthetic personas, and microtargeted propaganda. The challenge is detecting and deterring these campaigns without undermining legitimate civic participation. The challenge is especially acute in informal settlements, where legacy systems, coordination failures, and weak oversight can magnify harm.
society-governance
informal
settlements
protecting
local
democracy
automated
influence
operations
future
political
systems
public
technology-computing
across
climate-environment
climate
without
The technical problem is coupled with a social allocation problem: production varies, meters may be imperfect, and residents need rules they trust. Tariff design, optimization, and transparent settlement tools could make shared generation investable. The opportunity is intentionally human-scale: a cooperative, clinic, workshop, school, or municipal team could pilot it within one locality and measure outcomes before expanding. Mathematical modeling can help with forecast uncertainty, incentives, or resource constraints; entrepreneurship can turn a reliable workflow into a viable service.
mathematics-logic
asia
india
might
apartment
blocks
share
rooftop
solar
fairly
households
consume
different
local
actors
social-civic-problems
united
reuse
The bottleneck is not only parts supply but identification, dimensions, safety, and liability. Open component ontologies, machine-vision matching, and verified refurbishment networks could create new revenue for local technicians. The opportunity is intentionally human-scale: a cooperative, clinic, workshop, school, or municipal team could pilot it within one locality and measure outcomes before expanding. Mathematical modeling can help with repair uncertainty, incentives, or resource constraints; entrepreneurship can turn a reliable workflow into a viable service.
mathematics-logic
asia
indonesia
repair
parts
might
businesses
find
compatible
appliances
manufacturers
longer
support
local
actors
social-civic-problems
united
before
Many consultation processes collect comments but provide no traceable response or rationale. Structured argument maps, versioned policy records, and privacy-aware participation analytics could improve accountability without reducing deliberation to popularity. The opportunity is intentionally human-scale: a cooperative, clinic, workshop, school, or municipal team could pilot it within one locality and measure outcomes before expanding. Mathematical modeling can help with coordinate uncertainty, incentives, or resource constraints; entrepreneurship can turn a reliable workflow into a viable service.
society-governance
asia
bangladesh
consultation
might
local
actors
citizens
verify
whether
public
actually
mathematics-logic
social-civic-problems
united
turn
curb
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
Contracts translated using automated tools can sometimes contain subtle errors that create legal ambiguity between parties speaking different languages, and verification processes haven't fully adapted to catch these risks. Closing this legal exposure gap remains unresolved.
climate-environment
global-unspecified
legal
errors
contracts
create
ambiguity
don
have
scalable
way
detect
philosophy-ethics
whether
resolved
determine
agreed
prevent
open
Global / Unspecified, Global
Robocalls and spam calls continue to reach users despite various blocking technologies, partly because scammers can spoof caller information and operate across international boundaries where enforcement is inconsistent. A fully effective, universal solution remains unbuilt.
climate-environment
global-unspecified
spam
blocking
yet
build
universally
reliable
call
works
all
telecom
philosophy-ethics
whether
mathematics-logic
haven
resolved
determine
open
Global / Unspecified, Global
Techniques that let multiple parties jointly compute something without revealing their private data to each other exist, but they remain too slow and complex for widespread practical adoption. Making this both secure and fast enough remains an active research challenge.
society-governance
global-unspecified
secure
fast
enough
practical
build
fully
multi-party
computation
systems
everyday
whether
philosophy-ethics
mathematics-logic
haven
technology-computing
possible
open
Global / Unspecified, Global
Companies increasingly build products using AI models developed by others, but there's no consistent, scalable way to verify those models are safe and reliable before integration. This creates hidden risk throughout the growing AI supply chain.
economics-resources
global-unspecified
supply-chain
models
scalable
way
verify
products
don
have
safety
third-party
businesses
philosophy-ethics
whether
determine
resolved
agreed
open
Global / Unspecified, Global
As software grows to meet more complex user needs, it also grows harder for any single team to fully understand every part of it, creating hidden risks. Balancing capability with true comprehensibility remains an unsolved software engineering challenge.
technology-computing
global-unspecified
software
enough
complex
needs
fully
understand
build
systems
modern
while
whether
philosophy-ethics
mathematics-logic
haven
resolved
possible
open
Global / Unspecified, Global
AI models trained on real-world data often absorb and sometimes amplify existing societal biases, and current bias correction methods only partially address the problem. A more complete solution remains an active and unresolved area of research.
society-governance
global-unspecified
biases
data
haven
solved
make
systems
consistently
avoid
reproducing
present
whether
philosophy-ethics
technology-computing
mathematics-logic
resolved
open
Global / Unspecified, Global
Fake or substandard electronic parts sometimes slip into supply chains for critical equipment, including medical devices and vehicles, and current detection methods are neither fast nor cheap enough to catch every case. This creates hidden safety risks across many industries.
economics-resources
global-unspecified
supply-chain
electronic
supply
chains
don
have
reliable
low-cost
way
detect
counterfeit
whether
philosophy-ethics
determine
resolved
agreed