959 published verifications avg. score 4.7/10 329 rated true or mostly true 629 rated false or misleading
“Tardigrades are capable of surviving exposure to the conditions of outer space.”
The claim is true. Multiple independent, high-authority sources — including NASA, ESA, NSF, and peer-reviewed research — confirm that tardigrades have survived real exposure to outer space conditions. In the 2007 FOTON-M3 mission, tardigrades survived space vacuum for 10 days and even reproduced afterward. Survival is time-limited and reduced under intense solar UV radiation, but the demonstrated capability to survive space exposure is well-established scientific fact.
“It is possible to create diamonds from peanut butter using scientific methods.”
It is technically possible to convert carbon from peanut butter into diamond under extreme laboratory pressure, as demonstrated by geophysicist Dan Frost at Germany's Bayerisches Geoinstitut. Diamond crystals did form before hydrogen released from the peanut butter destroyed the apparatus. However, this was a single, unreplicated demonstration — not a peer-reviewed or repeatable method. Established diamond synthesis uses pure carbon feedstocks, not complex organic mixtures. The claim is literally true but gives a misleadingly optimistic impression of feasibility.
“Humans use only 10 percent of their brain capacity.”
This is one of the most persistent myths about the brain, but it is definitively false. Modern brain imaging (fMRI, PET scans) shows that humans routinely use all parts of their brain — not just 10%. Even during rest, widespread neural networks remain active. Harvard Health calls the claim "100% fiction," and MIT's McGovern Institute confirms we use our entire brain every day. The brain consumes roughly 20% of the body's energy, which would be biologically wasteful if 90% were unused.
“Cancel culture significantly limits free speech and open debate in Western societies.”
Cancel culture does produce documented chilling effects — self-censorship, fear of retaliation, and reluctance to voice unpopular opinions — particularly in academia and on social media. However, the claim overstates the evidence by saying it "significantly limits" free speech across all "Western societies." The best neutral survey data (Pew) shows only 14% of informed Americans call it censorship. Much of what is labeled "cancel culture" is itself legally protected counterspeech, not government censorship. The claim captures a real phenomenon but exaggerates its breadth and severity.
“Western economic sanctions against adversarial nations are largely ineffective at changing those nations' state policies.”
The claim contains a kernel of truth — sanctions often fail to reverse core security policies of hardened adversaries like Russia — but its sweeping "largely ineffective" framing is misleading. Aggregate studies show sanctions succeed in roughly 34–51% of cases involving modest policy demands, and the 2015 Iran nuclear deal is a prominent counterexample. Effectiveness varies significantly by objective, target, and design. Calling sanctions "largely ineffective" erases this meaningful variation and overstates the failure rate.
“The increasing use of deepfake technology poses a significant threat to democratic elections.”
The claim is largely accurate. Multiple credible sources — including Brookings, the Brennan Center, and legislative testimony — document real election-linked deepfake incidents (voter-suppression robocalls, fabricated candidate videos, incidents across 38 countries). However, the 2024–2025 global election super-cycle did not produce the catastrophic "deepfake election" many feared, and controlled experiments show minimal direct persuasion effects on voters. The threat is real and growing — particularly through trust erosion and procedural disinformation — but its demonstrated electoral impact remains more limited than the claim implies.
“It is illegal to drive a car with the interior light on.”
There is no law in the U.S., UK, or Australia that specifically makes it illegal to drive with your car's interior light on. This is a widespread myth. While police may cite you under broader unsafe or distracted driving laws if the light impairs your visibility or contributes to dangerous conditions, the act of having the interior light on is not itself prohibited. Multiple legal and automotive sources across jurisdictions confirm this.
“A group of owls is called a parliament.”
"Parliament" is indeed a widely recognized collective noun for a group of owls, confirmed across multiple reference sources including HowStuffWorks, Birdfact, and Grammar Monster. The phrase "is called" does not imply it is the only term — alternatives like "stare" and "wisdom" also exist — but "parliament" is the most commonly cited. The term's exact historical origin is debated, but its current usage in English is well established and uncontested.
“More people are killed annually by vending machines than by sharks worldwide.”
This popular claim lacks reliable support. Shark fatalities are well-documented at roughly 6–12 deaths per year worldwide. However, there is no credible, current global dataset for vending machine deaths—estimates range wildly from zero (since 2008) to 2–3 per year to an unverified "13 annually," mostly drawn from outdated U.S.-only data from the 1978–1995 era. The best available evidence suggests sharks now kill as many or more people annually worldwide than vending machines do, making this claim misleading.
“Gold is consistently a safe investment during periods of economic downturn.”
Gold has risen in roughly six of eight U.S. recessions since 1970, often outperforming equities. However, calling it "consistently" safe overstates the evidence. Gold fell during the 1980 and 1981–82 recessions, dropped sharply in liquidity crises (2008, March 2020), and research from the University of Stirling shows its correlation with equities has increased since 2005, weakening its safe-haven reliability. Gold is better described as a conditional hedge — often helpful in downturns, but not dependably so.
“Planting a large number of trees is the most effective immediate solution to climate change.”
This claim is false. While tree planting is a valuable part of climate strategy, calling it the "most effective immediate solution" is contradicted by overwhelming scientific evidence. Studies in Nature Climate Change and from NASA show that all reforestation potential over 30 years would offset less than one year of global emissions. Trees take decades to store substantial carbon — the opposite of "immediate." The scientific consensus is clear: reducing fossil fuel emissions is far more effective and remains the essential priority.
“Regular consumption of ultra-processed foods significantly increases the risk of developing dementia.”
There is a real association between high ultra-processed food intake and dementia risk in several large observational studies and meta-analyses (pooled RR ≈1.44). However, the claim overstates the evidence in key ways: the underlying studies are observational (not proving causation), the pooled estimate has extreme statistical heterogeneity (I²≈97%), newer studies find no association for total UPF intake, and "regular consumption" is vaguer than the "high vs. low" comparisons actually studied. The link is plausible but not as settled or causal as the claim implies.
“Inflation in Western economies is primarily caused by excessive government spending.”
The claim that inflation in Western economies is primarily caused by excessive government spending is not supported by the evidence. The IMF, World Bank, and St. Louis Fed identify energy shocks, supply chain disruptions, monetary policy, and broad demand dynamics as the dominant inflation drivers. While U.S. fiscal stimulus contributed meaningfully to the 2022 inflation spike, this narrow finding cannot be generalized to all Western economies or all time periods. Government spending is a contributing factor in specific episodes, not the primary cause overall.
“Drinking eight glasses of water per day is the optimal daily water intake for human health.”
This claim is false. No scientific evidence supports "eight glasses of water per day" as the optimal intake for human health. The National Academies explicitly state there is no single daily water requirement, and a peer-reviewed review in the American Journal of Physiology found zero studies backing the "8×8" rule. Actual water needs vary significantly by sex, body size, activity level, climate, and diet, and roughly 20–30% of daily water intake comes from food. Every major health authority rejects this as a myth.
“Marie Antoinette said the phrase "Let them eat cake" in response to being told that peasants had no bread.”
This claim is false. There is no historical evidence that Marie Antoinette ever said "Let them eat cake." The phrase predates her, appearing in Rousseau's Confessions (written 1765–1769) attributed to an unnamed princess when Marie Antoinette was still a child in Austria. The first printed attribution to her appeared only in 1843 — fifty years after her execution. Multiple authoritative sources confirm the quote is a myth rooted in political propaganda, not a documented historical event.
“The full moon causes an increase in unusual human behavior and events.”
The claim that full moons cause increased unusual human behavior is not supported by scientific evidence. Multiple large-scale studies, meta-analyses, and medical reviews consistently find no meaningful increase in ER visits, psychiatric admissions, crime, or other "unusual events" during full moons. While some isolated studies report small correlations with specific subgroups (e.g., sleep disruption or certain psychiatric conditions), these findings are inconsistent, not replicated at scale, and do not establish causation. This is a persistent cultural myth contradicted by the weight of research.
“Approximately half of the cells in the human body are non-human cells, primarily composed of microorganisms such as bacteria.”
The claim is largely accurate. The best peer-reviewed research (Sender et al., 2016) estimates ~38 trillion bacterial cells versus ~30 trillion human cells, making bacteria roughly 56% of all cells — reasonably described as "approximately half." However, this is a point estimate for a 70 kg adult male with significant uncertainty (~25%) and population variation. The claim also omits that by mass, bacteria account for only ~0.2 kg, so "approximately half" applies to cell count, not biological dominance.
“Stretching before exercise prevents muscle soreness and injuries.”
This claim is not supported by the best available evidence. Multiple high-quality systematic reviews, including a 2022 Cochrane review, consistently find that stretching before exercise does not produce clinically meaningful reductions in muscle soreness (DOMS) and does not significantly reduce general injury risk. While some newer research suggests specific stretching types (e.g., individualized active stretching) may help in narrow contexts, these tentative findings do not support the broad, blanket claim as stated.
“The Tyrannosaurus Rex lived closer in time to modern humans than to the Stegosaurus.”
This claim is true and well-established in paleontology. Stegosaurus lived ~150 million years ago, while T. rex lived ~68–66 million years ago — a gap of ~80–84 million years. T. rex went extinct ~66 million years ago, and modern humans appeared ~300,000 years ago — a gap of ~66 million years. Since 66 million years is less than 80–84 million years, T. rex indeed lived closer in time to us than to Stegosaurus. Multiple authoritative sources, including USGS and the Natural History Museum, confirm this.
“Bananas are radioactive due to their natural potassium-40 content.”
This claim is true. Bananas contain potassium-40 (K-40), a naturally occurring radioactive isotope that makes up about 0.012% of all potassium. This is confirmed by the US EPA, the Department of Energy, and peer-reviewed scientific literature. However, the radioactivity is extremely small — about 0.1 microsieverts per banana — and eating bananas does not increase your net radiation dose because the body maintains potassium balance and excretes excess potassium. Bananas pose no radiation health risk.