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
Automation may reduce routine collaboration and informal learning, especially for remote and platform workers. Future work design must preserve mentorship, belonging, collective problem-solving, and psychological health. 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
europe
germany
preventing
social
isolation
highly
automated
workplaces
under
geopolitical
fragmentation
design
economics-resources
climate-environment
society-governance
systems
quantum
Timepieces that run backward under measured social tension undermine scheduling and legal timekeeping. The problem is addressing psychological load without destabilising shared temporal reference.
maintaining
reliable
public
time
when
mathematics-logic
Future missions beyond low Earth orbit will expose crews to radiation, isolation, altered gravity, communication delays, and limited emergency care. The open problem is developing autonomous health systems that remain safe under unknown conditions. 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.
science-space
asia
india
missions
medical
psychological
support
long-duration
space
low-income
communities
limited
future
technology-computing
economics-resources
climate-environment
society-governance
systems
When people rent out unused cognitive capacity during daydreaming, buyers may leave behind persistent mental traces. The problem is creating clean separation between leased neural resources and the host’s own cognition so that temporary economic use does not produce lasting psychological or identity effects.
preventing
residual
thought
contamination
rented
economics-resources
Objects may gain short-lived conversational personalities that interact with and sometimes argue with their owners. The problem is preventing psychological dependence, harassment by objects, or commercial manipulation while still allowing useful interactive features. Solutions should include clear off-switches, personality boundaries, and accountability for manufacturers.
objects
personalities
regulating
temporary
assigned
mathematics-logic
open
Global / Unspecified, Global
Multi-year missions introduce sensory deprivation, communication delays, and high stress among crew members. Biomarker tracking, behavioral software, and crew dynamics protocols are needed to preserve mental health.
science-space
global-unspecified
mental-health
long-term
human
isolation
confined
space
environments
leads
severe
psychological
friction
mental
health
support
missions
medical
open
Global / Unspecified, Global
Medicines used on Earth lose potency rapidly on orbit, endangering astronauts on long multi-year Mars missions. Developing radiation-shielded drug formulations and long-shelf-life stabilizing active compounds is required.
health-biology
global-unspecified
pharmaceuticals
break
down
significantly
faster
microgravity
cosmic
radiation
conditions
medicines
science-space
missions
support
medical
psychological
long
open
Global / Unspecified, Global
Closed space station biomes combined with radiation select for rapid bacterial mutation, risking astronaut health. Autonomous metagenomic sequencing systems must continuously monitor station surfaces for bio-threats.
science-space
global-unspecified
drug-resistant
station
monitor
space
cannot
long-term
microbial
mutations
yield
multi-drug
resistant
systems
support
missions
medical
psychological
open
Global / Unspecified, Global
Hope can motivate perseverance even in dire circumstances, but forcing optimism onto someone facing truly bleak prospects raises unresolved ethical and psychological concerns. This tension appears throughout end-of-life care, crisis situations, and personal adversity.
philosophy-ethics
global-unspecified
hope
situations
don
have
agreed
way
determine
whether
fair
expect
resolved
know
haven
ethical
open
Global / Unspecified, Global
From childhood to old age, nearly everything about a person changes, yet we treat them as a single continuous identity, and no philosophical account of why has settled the matter. This affects questions about responsibility for past actions.
mathematics-logic
global-unspecified
person
don
know
makes
someone
same
over
time
despite
constant
whether
philosophy-ethics
resolved
determine
haven
agreed
open
Global / Unspecified, Global
Even acts of apparent sacrifice can be explained by psychological rewards like satisfaction or social approval, raising doubt about whether pure altruism is even possible. Resolving this affects how we understand human motivation and moral praise.
mathematics-logic
global-unspecified
whether
acts
don
know
truly
altruistic
behavior
exists
all
seemingly
haven
resolved
philosophy-ethics
possible
determine
open
Global / Unspecified, Global
If someone's memories, personality, and values change completely, it's unclear whether they remain the same person in any meaningful moral or metaphysical sense. This unresolved question has real implications for how we treat people with advanced dementia.
philosophy-ethics
global-unspecified
whether
change
don
have
agreed
way
determine
personal
identity
survives
resolved
know
haven
mathematics-logic
open
Global / Unspecified, Global
Growing crops in space or on other planets means dealing with low gravity, radiation, and limited water and soil. Without solving this, any permanent settlement beyond Earth stays dependent on costly resupply missions.
science-space
global-unspecified
earth
grow
food
efficiently
enough
support
long-term
human
settlements
off
long
whether
missions
philosophy-ethics
medical
psychological
open
New Zealand, Oceania
The absence of robust, context-adapted solutions for psychological first-aid and mental health systems scalable after mass trauma creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
oceania
new-zealand
mental-health
systems
psychological
first-aid
mental
health
scalable
mass
trauma
practical
realization
solutions
climate-environment
methods
enabling