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
Global / Unspecified, Global
For decades, computer chips got faster mainly by shrinking transistors, but they're now near the smallest physically possible size. Finding a new way to keep computing power growing is an open engineering problem.
technology-computing
global-unspecified
chips
keep
faster
now
transistors
near
don
have
getting
physical
whether
philosophy-ethics
resolved
determine
way
agreed
open
Global / Unspecified, Global
When an AI makes a harmful decision, it's often unclear whether the blame falls on the developer, the user, or the company deploying it. Without clear rules, victims of AI mistakes often have no clear path to accountability.
philosophy-ethics
global-unspecified
have
don
legal
framework
assigns
responsibility
systems
cause
harm
often
whether
resolved
determine
agreed
way
know
open
Global / Unspecified, Global
Fake videos and voice clones are now realistic enough to fool most people, and detection tools often lag behind the technology creating them. Left unresolved, this threatens trust in video and audio evidence itself.
health-biology
global-unspecified
videos
audio
don
have
reliable
way
detect
deepfake
moment
created
philosophy-ethics
whether
determine
resolved
agreed
open
Global / Unspecified, Global
As AI moves from answering questions to taking real actions, like managing money or controlling machinery, mistakes carry real consequences. We still lack agreed safety standards for how much autonomy is safe to hand over.
society-governance
global-unspecified
real
safe
haven
built
universal
way
let
systems
act
autonomously
whether
philosophy-ethics
resolved
mathematics-logic
determine
open
Global / Unspecified, Global
Billions of people still lack reliable, affordable internet, cutting them off from education, healthcare information, and economic opportunity. Closing this gap remains a matter of infrastructure cost, not lack of demand.
social-civic-problems
global-unspecified
internet
don
have
access
reaches
every
remote
community
earth
affordably
whether
philosophy-ethics
determine
resolved
way
agreed
open
Global / Unspecified, Global
Nearly every major hack traces back to a bug that existed long before anyone found it. Catching these flaws before release, rather than after damage is done, remains an unsolved challenge.
technology-computing
global-unspecified
flaws
release
don
have
way
guarantee
software
has
exploitable
security
whether
philosophy-ethics
resolved
determine
agreed
mathematics-logic
open
Global / Unspecified, Global
Modern AI models are often accurate but operate like black boxes, even to the people who built them. Without a way to explain their reasoning, it's hard to trust them in medicine, law, or other high-stakes decisions.
health-biology
global-unspecified
explain
don
have
systems
reliably
made
specific
decision
modern
models
philosophy-ethics
whether
resolved
determine
way
agreed
open
Global / Unspecified, Global
Current searches scan a tiny fraction of the sky and only for a narrow range of signals. Without better tools, we may be missing evidence of other intelligent life simply because we aren't looking in the right way.
philosophy-ethics
global-unspecified
way
don
have
reliable
search
signs
civilizations
meaningful
scale
whether
determine
resolved
agreed
open
Global / Unspecified, Global
Neuroscience can map which brain regions activate during thought, but nobody can explain why that activity produces subjective experience at all. This gap separates our understanding of the brain from any real understanding of the mind.
philosophy-ethics
global-unspecified
brain
don
know
consciousness
arises
physical
matter
understanding
neuroscience
map
whether
resolved
determine
mathematics-logic
haven
have
open
Global / Unspecified, Global
We know roughly when life began, but not the exact chemical steps that turned non-living matter into something that could reproduce. Solving this would also tell us where else in the universe life might arise.
philosophy-ethics
global-unspecified
don
fully
understand
first
living
cells
originated
earth
life
know
whether
resolved
mathematics-logic
haven
determine
open
Global / Unspecified, Global
According to our best theories, matter and antimatter should have destroyed each other completely after the Big Bang. Yet matter clearly won out, and we still don't know why.
science-space
global-unspecified
matter
explain
exists
all
instead
nothing
according
our
best
theories
know
don
whether
philosophy-ethics
determine
resolved
open
United States, North America
Thousands of pieces of space junk are already circling the planet, threatening satellites and future missions. Left unresolved, orbit could become too cluttered and risky to safely launch into.
science-space
north-america
united-states
orbit
don
have
affordable
way
remove
dangerous
debris
earth
thousands
global-unspecified
whether
philosophy-ethics
determine
agreed
open
Global / Unspecified, Global
Gravity should be pulling everything together over time, yet distant galaxies are accelerating away from each other. This mystery, blamed on dark energy, remains one of the biggest open questions in physics.
science-space
global-unspecified
don
understand
universe
expansion
speeding
instead
slowing
down
gravity
pulling
whether
philosophy-ethics
mathematics-logic
know
resolved
determine
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
Global / Unspecified, Global
Outside Earth's magnetic field, cosmic radiation raises cancer risk and can damage the brain and body over time. This is one of the biggest blockers to sending humans to Mars safely.
science-space
global-unspecified
radiation
haven
found
way
shield
astronauts
long
space
missions
outside
whether
philosophy-ethics
mathematics-logic
resolved
determine
open
Global / Unspecified, Global
Dark matter and dark energy make up roughly ninety five percent of the universe, yet we've never directly detected either. Everything we can see and touch is a small fraction of what's really out there.
science-space
global-unspecified
universe
energy
don
know
mass
actually
dark
matter
make
roughly
whether
philosophy-ethics
mathematics-logic
determine
open
Global / Unspecified, Global
Gravity describes the large scale universe well, and quantum mechanics describes the tiny scale well, but the two don't fit together mathematically. A unified theory would finally explain what happens inside black holes and at the birth of the universe.
mathematics-logic
global-unspecified
don
theory
gravity
quantum
mechanics
have
working
unifies
describes
scale
whether
philosophy-ethics
resolved
determine
know
agreed
Current approaches to real-time monitoring and response systems for industrial chemical and oil spill events either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
society-governance
oceania
fiji
systems
real-time
monitoring
response
industrial
chemical
oil
spill
events
practical
climate-environment
enabling
technology-computing
solutions
under
Achieving protocols for equitable and rapid distribution of medical countermeasures in pandemics at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
health-biology
africa
egypt
protocols
equitable
rapid
distribution
medical
countermeasures
pandemics
systemic
solutions
addressing
economics-resources
climate-environment
systems
society-governance
methods
open
United States, North America
The absence of robust, context-adapted solutions for education approaches that build the capacity for systems thinking and long-term decision making 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
north-america
united-states
systems
solutions
education
approaches
build
capacity
thinking
long-term
decision
making
climate-environment
methods
enabling
ensuring
designs