We don't have programming languages that make large software systems provably free of certain bugs.
open
Global / Unspecified, Global
Even experienced teams regularly introduce bugs into complex software, some of which cause expensive failures. Languages or tools that can mathematically guarantee certain classes of bugs can't exist would be a major step forward.
technology-computing
global-unspecified
bugs
languages
software
certain
don
have
programming
make
large
systems
whether
philosophy-ethics
determine
resolved
mathematics-logic
Citation ID: WS00176
Title: We don't have programming languages that make large software systems provably free of certain bugs.
URL: https://www.worldsolve.org/index.php?api=problem&id=176
We haven't solved how to give every person on Earth a verifiable digital identity without a central authority controlling it.
open
Global / Unspecified, Global
Billions of people still lack any formal digital identity, cutting them off from banking, healthcare, and government services. A decentralized system could include everyone without handing control to one entity.
society-governance
global-unspecified
digital
identity
haven
solved
give
every
person
earth
verifiable
central
whether
african
philosophy-ethics
know
mathematics-logic
lack
Citation ID: WS00175
Title: We haven't solved how to give every person on Earth a verifiable digital identity without a central authority controlling it.
URL: https://www.worldsolve.org/index.php?api=problem&id=175
We can't yet stop spam and scam calls from reaching phones despite years of filtering technology.
open
Global / Unspecified, Global
Scammers constantly find new ways around call-blocking systems, and phone networks still let large volumes of fraudulent calls through. A truly effective, adaptive solution remains elusive.
climate-environment
global-unspecified
calls
yet
stop
spam
scam
reaching
phones
despite
years
filtering
whether
mathematics-logic
philosophy-ethics
haven
technology-computing
resolved
Citation ID: WS00174
Title: We can't yet stop spam and scam calls from reaching phones despite years of filtering technology.
URL: https://www.worldsolve.org/index.php?api=problem&id=174
We don't have a universal standard letting different smart home devices work together seamlessly.
open
Global / Unspecified, Global
Homes filled with gadgets from different brands often struggle to talk to each other properly, frustrating users and limiting real automation. A shared, open standard would fix this fragmentation.
technology-computing
global-unspecified
standard
different
don
have
universal
letting
smart
home
devices
work
philosophy-ethics
whether
determine
resolved
agreed
know
Citation ID: WS00173
Title: We don't have a universal standard letting different smart home devices work together seamlessly.
URL: https://www.worldsolve.org/index.php?api=problem&id=173
We haven't built a way to fully verify that open-source software hasn't been secretly tampered with.
open
Global / Unspecified, Global
Millions of applications depend on open-source code maintained by volunteers, and a single hidden change can spread unnoticed to countless systems. A trustworthy verification system remains a major unsolved need.
technology-computing
global-unspecified
open-source
haven
built
way
fully
verify
software
hasn
been
secretly
whether
mathematics-logic
philosophy-ethics
possible
resolved
every
Citation ID: WS00172
Title: We haven't built a way to fully verify that open-source software hasn't been secretly tampered with.
URL: https://www.worldsolve.org/index.php?api=problem&id=172
We can't yet explain the source of ultra-high-energy cosmic rays hitting Earth.
open
Global / Unspecified, Global
These particles carry more energy than anything we can produce on Earth, and we still don't know exactly what cosmic event launches them our way. Identifying the source could reveal entirely new astrophysical processes.
climate-environment
global-unspecified
source
cosmic
earth
yet
explain
ultra-high-energy
rays
hitting
these
particles
whether
know
philosophy-ethics
don
science-space
mathematics-logic
Citation ID: WS00171
Title: We can't yet explain the source of ultra-high-energy cosmic rays hitting Earth.
URL: https://www.worldsolve.org/index.php?api=problem&id=171
We haven't figured out how to keep spacecraft electronics reliable during years-long deep space missions.
open
Global / Unspecified, Global
Cosmic radiation gradually damages electronics, and there's no way to send a repair technician to fix something millions of miles away. More radiation-hardy systems are essential for missions lasting a decade or more.
science-space
global-unspecified
electronics
missions
haven
figured
out
keep
spacecraft
reliable
during
years-long
space
found
way
whether
fully
radiation
Citation ID: WS00170
Title: We haven't figured out how to keep spacecraft electronics reliable during years-long deep space missions.
URL: https://www.worldsolve.org/index.php?api=problem&id=170
We don't have a full model explaining why the early universe expanded so much faster than expected.
open
Global / Unspecified, Global
This period, known as cosmic inflation, is widely accepted as a concept but the exact physical mechanism driving it remains unproven. Confirming it would close a major gap in our understanding of the universe's first moments.
economics-resources
global-unspecified
universe
don
have
full
model
explaining
early
expanded
faster
expected
whether
philosophy-ethics
determine
mathematics-logic
agreed
resolved
Citation ID: WS00169
Title: We don't have a full model explaining why the early universe expanded so much faster than expected.
URL: https://www.worldsolve.org/index.php?api=problem&id=169
We can't yet detect small, dangerous near-Earth asteroids far enough in advance.
open
Global / Unspecified, Global
Larger asteroids are easier to spot years ahead, but smaller ones capable of serious regional damage often go undetected until they're very close. Expanding detection capability remains a quiet but serious safety gap.
local-regional
global-unspecified
asteroids
yet
detect
small
dangerous
near-earth
far
enough
advance
but
whether
philosophy-ethics
health-biology
haven
mathematics-logic
technology-computing
Citation ID: WS00168
Title: We can't yet detect small, dangerous near-Earth asteroids far enough in advance.
URL: https://www.worldsolve.org/index.php?api=problem&id=168
We haven't confirmed exactly how the Moon originally formed.
open
Global / Unspecified, Global
The leading theory involves a massive collision with early Earth, but several details still don't perfectly match the evidence we've collected from lunar samples. A fuller explanation would clarify Earth's own early history too.
health-biology
global-unspecified
haven
confirmed
exactly
moon
originally
formed
early
earth
leading
theory
whether
philosophy-ethics
don
way
detect
science-space
Citation ID: WS00167
Title: We haven't confirmed exactly how the Moon originally formed.
URL: https://www.worldsolve.org/index.php?api=problem&id=167
We can't yet build space habitats that fully replicate Earth-like gravity for long-term health.
open
Global / Unspecified, Global
Living without normal gravity weakens astronauts' bones and muscles over time. Practical, affordable ways to simulate gravity in space stations remain mostly untested at scale.
science-space
global-unspecified
gravity
space
yet
build
habitats
fully
replicate
earth-like
long-term
health
whether
mathematics-logic
philosophy-ethics
know
Citation ID: WS00166
Title: We can't yet build space habitats that fully replicate Earth-like gravity for long-term health.
URL: https://www.worldsolve.org/index.php?api=problem&id=166
We don't fully understand what lies beneath the icy surfaces of moons like Europa and Enceladus.
open
Global / Unspecified, Global
Some outer moons hide liquid oceans beneath thick ice, and possibly conditions that could support life. Getting real data from beneath that ice remains a major unsolved engineering and mission challenge.
climate-environment
global-unspecified
beneath
moons
don
fully
understand
lies
icy
surfaces
like
europa
whether
philosophy-ethics
mathematics-logic
know
possible
determine
Citation ID: WS00165
Title: We don't fully understand what lies beneath the icy surfaces of moons like Europa and Enceladus.
URL: https://www.worldsolve.org/index.php?api=problem&id=165
We haven't developed cost-effective ways to protect satellites from space weather damage.
open
Global / Unspecified, Global
Solar storms and radiation slowly degrade satellite electronics, shortening their working life and risking sudden failures. Better shielding could extend satellite lifespans and reduce costly replacements.
science-space
global-unspecified
haven
developed
cost-effective
ways
protect
satellites
space
weather
damage
satellite
long
whether
solved
solar
know
infrastructure
Citation ID: WS00164
Title: We haven't developed cost-effective ways to protect satellites from space weather damage.
URL: https://www.worldsolve.org/index.php?api=problem&id=164
We can't reliably simulate how black holes merge and release gravitational waves in fine detail.
open
Global / Unspecified, Global
Detecting gravitational waves was a breakthrough, but modeling exactly what happens during these violent mergers pushes our computing power and physics equations to their limits.
science-space
global-unspecified
gravitational
waves
reliably
simulate
black
holes
merge
release
fine
detail
cosmic
details
inflation
remain
economics-resources
speculative
Citation ID: WS00163
Title: We can't reliably simulate how black holes merge and release gravitational waves in fine detail.
URL: https://www.worldsolve.org/index.php?api=problem&id=163
We don't have a full explanation for the strange, repeating radio signals detected from deep space.
open
Global / Unspecified, Global
Fast radio bursts flash briefly and then vanish, and we still don't fully understand what causes them. Some theories point to exotic stars, but no explanation is fully confirmed yet.
science-space
global-unspecified
don
explanation
radio
have
full
strange
repeating
signals
detected
deep
whether
philosophy-ethics
mathematics-logic
resolved
know
determine
Citation ID: WS00162
Title: We don't have a full explanation for the strange, repeating radio signals detected from deep space.
URL: https://www.worldsolve.org/index.php?api=problem&id=162
We haven't found a cheap way to produce rocket fuel using local resources on the Moon or Mars.
open
Global / Unspecified, Global
Every kilogram of fuel launched from Earth adds enormous cost to a mission. Producing fuel on-site from ice or soil could make deep space missions dramatically more affordable.
science-space
global-unspecified
fuel
haven
found
cheap
way
produce
rocket
local
resources
moon
whether
make
philosophy-ethics
mathematics-logic
fully
Citation ID: WS00161
Title: We haven't found a cheap way to produce rocket fuel using local resources on the Moon or Mars.
URL: https://www.worldsolve.org/index.php?api=problem&id=161
We can't grow plants in space with the same yield and speed as on Earth.
open
Global / Unspecified, Global
Low gravity and different light conditions slow plant growth and change nutrient uptake in ways we don't fully understand yet. Solving this is essential for any long-duration space mission that needs fresh food.
science-space
global-unspecified
space
grow
plants
same
yield
speed
earth
low
gravity
different
whether
fully
philosophy-ethics
mathematics-logic
know
don
Citation ID: WS00160
Title: We can't grow plants in space with the same yield and speed as on Earth.
URL: https://www.worldsolve.org/index.php?api=problem&id=160
We haven't explained why some galaxies rotate in ways that don't match visible matter alone.
open
Global / Unspecified, Global
This mismatch is part of the evidence for dark matter, but the details of how it shapes galaxy rotation are still not fully worked out. A better model would sharpen our understanding of galaxy formation.
science-space
global-unspecified
matter
haven
explained
some
galaxies
rotate
ways
don
match
visible
know
fully
understand
not
actually
dark
Citation ID: WS00159
Title: We haven't explained why some galaxies rotate in ways that don't match visible matter alone.
URL: https://www.worldsolve.org/index.php?api=problem&id=159
We can't yet build rockets that are fully reusable without expensive refurbishment between flights.
open
United States, North America
Reusable rockets have cut costs, but they still require significant repair and inspection after each landing. True rapid reusability, like an airplane, would make space travel dramatically cheaper.
science-space
north-america
united-states
rockets
reusable
yet
build
fully
expensive
refurbishment
between
flights
have
global-unspecified
whether
possible
mathematics-logic
technology-computing
Citation ID: WS00158
Title: We can't yet build rockets that are fully reusable without expensive refurbishment between flights.
URL: https://www.worldsolve.org/index.php?api=problem&id=158
We don't know exactly how many potentially habitable planets exist in our galaxy.
open
United States, North America
We've confirmed thousands of exoplanets, but identifying which ones could truly support life requires data we mostly don't have yet. A clearer count would refocus the search for life beyond Earth.
philosophy-ethics
north-america
united-states
don
know
exactly
potentially
habitable
planets
exist
our
galaxy
life
global-unspecified
whether
determine
resolved
have
Citation ID: WS00157
Title: We don't know exactly how many potentially habitable planets exist in our galaxy.
URL: https://www.worldsolve.org/index.php?api=problem&id=157