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
Addressing background checks failing is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.
background
checks
failing
2030
implementing
mathematics-logic
open
Global / Unspecified, Global
Tutoring platforms can be targeted by individuals using AI-generated fake credentials to appear more qualified than they actually are, and verification systems don't always catch this convincingly fabricated background information. Closing this trust gap remains an unresolved platform challenge.
technology-computing
global-unspecified
ai-generated
fake
tutoring
credentials
haven
solved
prevent
academic
misleading
students
whether
philosophy-ethics
way
resolved
mathematics-logic
open
Global / Unspecified, Global
Voice-activated devices can sometimes misinterpret background conversation as an intentional wake command, inadvertently recording or transmitting private moments. Eliminating this risk entirely while keeping devices responsive remains an unresolved design tradeoff.
economics-resources
global-unspecified
recording
transmitting
private
build
fully
reliable
systems
prevent
voice
assistants
whether
philosophy-ethics
mathematics-logic
technology-computing
haven
resolved
open
Global / Unspecified, Global
Voice assistants can still struggle to accurately understand commands in households with background noise, multiple speakers, or mixed languages, leading to frustrating and sometimes unsafe misunderstandings. Improving this reliability remains an ongoing technical challenge.
climate-environment
global-unspecified
voice
assistants
commands
households
haven
solved
prevent
misinterpreting
noisy
multilingual
whether
philosophy-ethics
mathematics-logic
technology-computing
resolved
way
open
Global / Unspecified, Global
We have detected a handful of mergers, but their cosmic history and diversity remain unclear. Next-generation detectors with wider frequency coverage can map the gravitational-wave background.
science-space
global-unspecified
gravitational-wave
cosmic
exact
rate
mechanisms
sources
time
unknown
have
detected
know
dark
remain
matter
lack
explain
open
Global / Unspecified, Global
Inflationary models explain early expansion but differ in predictions for primordial fluctuations and multiverse scenarios. Precision measurements of the cosmic microwave background and primordial gravitational waves could distinguish models.
economics-resources
global-unspecified
cosmic
fine
details
inflation
remain
speculative
models
primordial
inflationary
explain
science-space
know
climate-environment
have
society-governance
dark
open
Global / Unspecified, Global
This relic of the Big Bang has not been directly detected. Novel detectors and cosmological analysis methods are needed.
mathematics-logic
global-unspecified
lack
precise
characterization
cosmic
neutrino
background
relic
big
bang
has
know
science-space
dark
actually
matter
not
open
Global / Unspecified, Global
Measurements of the cosmic microwave background yield a lower expansion rate than direct distance ladder measurements of modern galaxies. Resolving this discrepancy could reveal brand-new physics beyond the Standard Model.
science-space
global-unspecified
discrepancy
hubbel
tension
shows
critical
fast
universe
expanding
measurements
cosmic
know
dark
matter
actually
models
have
open
Global / Unspecified, Global
Current noise cancellation works well for constant background noise but still struggles with sudden, sharp sounds, sometimes even letting through more noise briefly during the adjustment. A truly adaptive system remains technically unresolved.
mathematics-logic
global-unspecified
sudden
sounds
noise
haven
solved
make
noise-canceling
headphones
fully
block
whether
philosophy-ethics
resolved
possible
way