Library

2,732 verifications avg. score 5.6/10 1,326 rated (mostly) true 1,156 rated (mostly) false

“The "five-second rule" — the belief that food dropped on the floor is safe to eat if picked up within five seconds — prevents the transfer of harmful bacteria to food.”

False 2/10

The five-second rule does not prevent harmful bacteria from transferring to dropped food. Peer-reviewed research, including a comprehensive 2016 Rutgers study, shows bacteria can transfer to food in less than one second upon contact. While longer contact times may increase contamination, there is no safe window. Factors like moisture, surface type, and contamination level often matter more than time. The claim is not supported by scientific evidence.

“Wearing sunscreen with SPF is recommended for skincare and skin protection even when indoors.”

Mixed 5/10

The claim is partially true but misleadingly broad. Reputable medical sources like MD Anderson and Keck Medicine of USC do recommend sunscreen indoors — but specifically when you spend prolonged time near windows, since UVA rays can penetrate glass. However, Cancer Council Australia and other authorities say indoor sunscreen is "typically" unnecessary because overall UV exposure indoors is low. The blanket phrasing "even when indoors" overstates what is actually a conditional recommendation tied to window proximity, skin conditions, and exposure duration.

“Live sports broadcasts cannot be convincingly deepfaked using current technology as of March 1, 2026.”

Mostly False 3/10

This claim is false. As of March 2026, real-time deepfake systems can already generate convincing manipulations of sports footage at broadcast frame rates (40–50 FPS) on both datacenter and consumer hardware. While limitations remain with extreme camera angles and multi-person occlusions, these are partial constraints — not fundamental barriers. Convincing deepfakes of live sports segments, interviews, and selective broadcast shots are demonstrably achievable today, making the blanket assertion that they "cannot" be done inaccurate.

“Carbon capture and storage technology is an effective and scalable solution for achieving net-zero emissions.”

Mostly False 4/10

CCS technology is technically effective at capturing CO₂ from point sources (~90%+ efficiency) and is considered necessary in most net-zero scenarios — particularly for hard-to-abate industrial sectors. However, calling it "an effective and scalable solution" significantly overstates its role. The IEA's 2025 World Energy Outlook projects CCUS contributing under 5% of emissions reductions by 2050. Current deployment (~50 Mtpa) is a fraction of what's needed, and major barriers — high costs, infrastructure gaps, and financing challenges — remain unresolved. Authoritative sources consistently describe CCS as "critical but limited" and "complementary," not a primary scalable solution.

“Supplements that activate the telomerase enzyme are safe for human use.”

Mixed 5/10

This claim significantly overstates the evidence. While a few small, short-term clinical trials (6–12 months) of specific supplements like TA-65 reported no serious adverse effects, the best available systematic review explicitly states that long-term cancer risk and chronic toxicity remain unaddressed, and a 12.4% treatment-emergent adverse-event rate was observed. Mechanistic and epidemiological evidence also links telomerase activation with cancer risk. Declaring these supplements broadly "safe for human use" is not supported by current science.

“Common law marriages are legally recognized in all US states after a certain number of years living together.”

False 1/10

This claim is false on two counts. First, common-law marriage is not recognized in all US states — only a small minority of states currently allow couples to form one. Most states have abolished it or never permitted it. Second, no state automatically grants marriage status after a certain number of years of cohabitation alone. States that do recognize common-law marriage require mutual intent to be married and publicly holding out as a married couple, not just living together for a set period.

“When a worm is cut in two, it regenerates into two separate worms.”

Mostly False 4/10

This is a popular myth that's only partially true. Some worm species — notably planarian flatworms — can indeed regenerate into two complete worms when cut in half. However, the common earthworm, which most people picture when they hear "a worm," cannot do this. Typically only the head end survives; the tail end dies. Regeneration into two individuals is a species-specific ability, not a universal worm trait. The claim misleadingly presents an exception as a general rule.

“Central bank digital currencies (CBDCs) will result in a significant reduction of financial privacy for ordinary citizens.”

Mixed 5/10

The claim captures a genuine concern — many credible institutions warn that CBDCs could concentrate transaction data and enable surveillance. However, the claim's framing as an inevitable outcome ("will result in") is not supported by the evidence. The most authoritative sources (European Data Protection Supervisor, Bank for International Settlements, Homeland Security) consistently describe privacy risks as dependent on design choices, not guaranteed. Privacy-preserving CBDC architectures exist and are actively researched. The accurate statement is that CBDCs could significantly reduce privacy if designed without adequate safeguards.

“The human brain uses 20% of the body's total oxygen supply.”

Mostly True 8/10

The claim is well-supported by multiple peer-reviewed biomedical studies confirming that the adult human brain consumes approximately 20% of the body's total oxygen at rest. This is a widely accepted figure in neuroscience. Minor caveats: the figure applies specifically to adults in a resting/basal state, some sources cite a 15–20% range, and the proportion is significantly higher in young children. These are standard qualifications that don't undermine the claim's core accuracy.

“Owning a home is always financially better than renting.”

False 2/10

This claim is false. Owning a home is not "always" financially better than renting. Multiple credible sources show that the outcome depends on time horizon, local housing markets, interest rates, and the opportunity cost of a down payment. As of mid-2025, First American's analysis found renting made more financial sense nationally and in most U.S. markets—even after accounting for equity gains. Short holding periods, high mortgage rates, and steep transaction costs can all make renting the better financial choice.

“The Sahara Desert was once a lush, green landscape with rivers and abundant wildlife.”

Mostly True 8/10

The claim is well-supported by extensive scientific evidence. During recurring "African Humid Periods" — most notably roughly 11,000–5,000 years ago — large parts of the Sahara had significantly more rainfall, flowing rivers, lakes, and water-dependent wildlife including hippos, crocodiles, and large game. However, the phrasing slightly overgeneralizes: these green conditions were episodic rather than permanent, and geographically uneven rather than uniform across the entire desert.

“Drinking coffee causes dehydration in humans.”

False 2/10

This claim is false. The scientific consensus, supported by peer-reviewed meta-analyses and major health authorities like the NHS, is clear: moderate coffee consumption does not cause dehydration in healthy adults. Coffee's mild diuretic effect is transient and far outweighed by the water content of the beverage itself. The only studies showing negative fluid balance used extreme caffeine doses in caffeine-deprived subjects—conditions irrelevant to normal coffee drinking. Regular consumers develop tolerance to caffeine's diuretic effects.

“Flushing prescription medications down the toilet is the safest method of disposal.”

False 1/10

This claim is false. Every major health and environmental authority — including the EPA, CDC, FDA, and MedlinePlus — identifies drug take-back programs as the safest disposal method for prescription medications, not flushing. Flushing is only recommended for a small subset of high-risk drugs (primarily opioids) on the FDA's "Flush List," and only when take-back options are unavailable. For the vast majority of prescriptions, flushing is actively discouraged because it contaminates waterways and drinking water.

“Eating spicy food can cause stomach ulcers.”

False 2/10

This claim is false. Modern medical evidence overwhelmingly shows that stomach ulcers are caused by H. pylori bacterial infection and NSAID use — not by spicy food. Major institutions including the NIDDK, Cleveland Clinic, and Yale Medicine explicitly reject the spicy-food-causes-ulcers myth. Peer-reviewed research actually shows capsaicin (the active compound in spicy food) may be gastroprotective. While spicy food can worsen symptoms in someone who already has an ulcer, it does not cause ulcers.

“Standardized testing predicts future academic success more accurately than other assessment methods.”

Mixed 5/10

This claim significantly overstates the evidence. Standardized tests like the SAT and ACT do predict college GPA and add value beyond high-school grades in some models. However, multiple large-scale, peer-reviewed studies find that high-school GPA is a stronger predictor of longer-term outcomes like college graduation. The research consensus is that combining test scores with other measures yields the best predictions — not that tests alone are superior. The claim's absolute framing ("more accurately than other assessment methods") is not supported by the literature.

“Anorexia is classified as a mental health condition.”

True 9/10

Yes. In common usage, “anorexia” refers to anorexia nervosa, which major health authorities (e.g., WHO, NHS, NIMH) classify as a mental disorder/mental health condition. The only caveat is terminology: “anorexia” can also mean loss of appetite (a symptom), which is not itself a mental health diagnosis.

“Some species are biologically immortal and can potentially live indefinitely.”

Mixed 5/10

Some organisms (e.g., hydra; “immortal jellyfish”) show negligible senescence or can revert life stages, which is sometimes called “biological immortality.” But the cited sources often hedge (“in theory,” “don’t seem to age”), and none show individuals actually living indefinitely in nature. Without that context, the claim overstates what’s proven.

“Romantic love typically lasts no more than three years in most relationships.”

Mostly False 3/10

The claim conflates early-stage passionate intensity — which research does show fading within roughly 1–3 years — with romantic love broadly. Multiple high-authority sources, including the American Psychological Association and Harvard Medical School, explicitly distinguish these constructs. Neuroimaging studies show couples married over 20 years can exhibit the same dopamine-rich romantic brain activity as newly in-love individuals. The blanket assertion that romantic love "typically lasts no more than three years in most relationships" is not supported by the preponderance of scientific evidence.

“Existing legal frameworks adequately address the ethical concerns related to the development and deployment of autonomous AI systems.”

False 2/10

This claim is false. While legal frameworks addressing AI ethics do exist—most notably the EU AI Act and UNESCO's ethical principles—the evidence overwhelmingly shows they do not "adequately" address the ethical concerns of autonomous AI systems. Regulations remain fragmented across jurisdictions, enforcement is uncertain, key obligations are still being phased in, and fundamental questions about accountability and liability when autonomous AI systems cause harm remain unresolved. The existence of emerging rules is not the same as adequacy.

“Fasting is not recommended for women over the age of 50.”

False 2/10

This claim is false. No major health organization or clinical guideline issues a blanket recommendation against fasting for all women over 50. While some medical literature cautions against fasting in "advanced age" or the "elderly," these terms are not defined as starting at 50. Multiple authoritative sources — including the Cleveland Clinic, peer-reviewed PMC studies, and Harvard Health — indicate intermittent fasting can be safe and potentially beneficial for postmenopausal women when approached with medical guidance and individualized assessment.