Reasoning error · source evaluation

Cherry-picking

Cherry-picking occurs when a conclusion is built from a selected subset of the available evidence while materially relevant contrary or contextual evidence is omitted.

Also known as: selective evidence

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How to recognize it

  • Only supportive studies, time windows or examples are shown despite a larger mixed record.
  • The inclusion rule appears to change depending on whether evidence supports the preferred conclusion.
  • A list of examples is presented without showing the full search space or denominator.

How to reduce it

  • Define inclusion and exclusion criteria before reviewing outcomes when possible.
  • Search explicitly for high-quality disconfirming evidence and failed replications.
  • Prefer systematic synthesis over citation counting or curated example lists.

Cherry-picking is a selection problem, not necessarily a fabrication problem. Every quoted study may be genuine.

The correction therefore has to examine the selection rule. A transparent synthesis asks what was searched, what was excluded, whether the criteria were applied symmetrically, and how the omitted evidence would change the conclusion.

Research basis

Research & reasoning sources

  1. Biased assimilation and attitude polarization: The effects of prior theories on subsequently considered evidence Journal of Personality and Social Psychology · 1979 · peer reviewed study · DOI 10.1037/0022-3514.37.11.2098

    Classic experiment showing that people with opposing prior views evaluated mixed evidence in a directionally biased way.

  2. Feeling validated versus being correct: a meta-analysis of selective exposure to information Psychological Bulletin · 2009 · meta analysis · DOI 10.1037/a0015701

    Meta-analysis finding a moderate preference for attitude-consistent over attitude-challenging information, moderated by defensive and accuracy motives.

Investigation ↔ Learn

Claims using this reasoning error

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Unsupported Reviewed Oct 15, 2026

Do ships and aircraft disappear unusually often in the Bermuda Triangle?

Famous disappearances in the Bermuda Triangle are real historical incidents, but memorable cases do not establish a higher risk per voyage or flight. NOAA says there is no evidence of unusually frequent mysterious losses. A 2022 analysis examined maritime and aviation incident records but lacked the traffic-exposure denominators needed to compare disappearance rates with other regions. The elevated-rate claim is unsupported; the exact comparative rate remains uncertain.

Unsupported Reviewed Oct 14, 2026

Was Atlantis an advanced technological civilization whose history is being suppressed?

Atlantis enters the surviving record through Plato's Timaeus and Critias, where it serves a philosophical and political narrative. Real disasters or places may have influenced parts of the story, but no archaeological culture matching the full high-technology Atlantis claim has been demonstrated. The added suppression component is unsupported and often makes the claim self-sealing.

Unsupported Reviewed Oct 14, 2026

Is 'dirty electricity' a major proven cause of chronic disease?

High-frequency voltage transients on electrical wiring are real and measurable, but the claim that they are an established major cause of chronic disease is not supported by the current human evidence. Reviews have found inconsistent exposure definitions, weak or nonblinded designs and limited replication. The electrical phenomenon should be distinguished from the much stronger health-causation claim.

Unsupported Reviewed Oct 14, 2026

Do pyramids around the world prove one lost global civilization or non-human builder?

Pyramidal forms appear in multiple cultures, but their dates, materials, functions, construction histories and local architectural sequences differ substantially. Egypt and Teotihuacan, for example, developed within distinct regional traditions separated by thousands of years. Shared broad geometry is not enough to establish one global designer.

Unsupported Reviewed Oct 14, 2026

Does the Great Pyramid intentionally encode the speed of light or other modern constants?

A latitude line at 29.9792458° N does pass through the Great Pyramid, echoing the digits of 299,792,458 metres per second. But the pyramid's surveyed center is at a different latitude, and the numerical match depends on modern decimal degrees and the SI value of c—whose exact numerical value is fixed by the modern SI definition of the metre. No independent evidence shows Fourth Dynasty builders intended this encoding.

Unsupported Reviewed Oct 14, 2026

Did Nephilim or a race of literal giants build ancient monuments?

Biblical giant traditions are genuine ancient texts with disputed interpretation, and pathological gigantism is biologically real. Neither establishes an archaeological population of monument-building giants. Construction evidence at major sites points to local human societies, while the giant-builder claim lacks securely excavated population-level skeletal, occupational and construction evidence.

Contradicted Reviewed Oct 14, 2026

Was Tartaria an advanced global civilization erased from history?

Tartary and Tartaria are real labels on historical Western maps, but the labels changed over time and referred broadly to large parts of northern and central Asia rather than one hidden global technological state. The cartographic record, rather than supporting erasure, documents how European geographic naming evolved. The advanced-civilization claim is contradicted by that historical context.

Contradicted Reviewed Oct 14, 2026

Did a recent worldwide mud flood bury an advanced civilization and reset history?

Local floods, sediment burial and changes in street grade are real, but a recent global reset would have to interrupt many independent annual and historical chronologies. Long tree-ring sequences, archaeological timbers, ice-core chronologies and documentary records remain continuous across the period in which the alleged reset is usually placed. The worldwide recent mud-flood claim is contradicted.

Unsupported Reviewed Oct 12, 2026

Do 432 Hz or 528 Hz have unique healing effects?

Music can affect stress, mood and physiology, and several small trials have reported differences between music tuned to 432 Hz and comparison tunings. But the frequency-specific literature is limited and heterogeneous, and it does not establish 432 Hz, 528 Hz or another tuning as a uniquely privileged biological frequency that broadly heals disease.

Unsupported Reviewed Oct 12, 2026

Are chemtrails a secret large-scale spraying program?

Persistent contrails are a documented atmospheric phenomenon: aircraft exhaust can form ice-crystal clouds that persist and spread when the upper atmosphere is sufficiently cold and humid. Real cloud-seeding and geoengineering research also exist, which is an important source of confusion. But those activities are distinct from ordinary high-altitude contrails. Expert surveys, aviation and atmospheric evidence, and current government documentation do not establish a covert large-scale spraying program hidden inside normal commercial-aircraft contrails.

Contradicted Reviewed Oct 12, 2026

Do the Dendera reliefs depict electric light bulbs?

The elongated serpent-and-lotus reliefs resemble electric lamps to modern viewers. A directly inspected 1982 Egyptological study, with translations of the inscriptions from the specific Dendera crypt and matching original plates, identifies Harsomtus, sacred barks and a djed support instead. This contradicts the proposed identification as electric light bulbs; ancient electrical lighting has no independently demonstrated archaeological basis here.

Contradicted Reviewed Oct 12, 2026

Were the Egyptian pyramids built by extraterrestrials?

The alien-builder claim is contradicted by archaeological and documentary evidence from the Egyptian construction system itself: Fourth Dynasty support infrastructure at Giza, quarry and transport records, and Merer's logbook describing limestone transport to Khufu's pyramid complex while the project was active. Some engineering details remain debated; that is not evidence for extraterrestrial builders.

Contradicted Reviewed Oct 12, 2026

Are the Sun and stars small, nearby objects?

Apparent size alone cannot determine distance, but astronomical distances are measured through geometry. The Earth-Sun distance is constrained by solar-system measurements, while stellar parallax directly measures the shift of nearby stars as Earth moves around the Sun. These methods place the Sun about one astronomical unit away and stars far beyond the solar system.

Contradicted Reviewed Oct 12, 2026

Would the Van Allen radiation belts have made the Apollo missions impossible?

The Van Allen belts are real radiation hazards, but hazard is not the same as a lethal dose. Apollo trajectories crossed the belts relatively quickly, spacecraft shielding reduced exposure, and onboard dosimeters recorded mission doses well below acute radiation-injury levels. A major solar particle event could have raised risk substantially, but none struck during the crewed lunar missions.

Contradicted Reviewed Oct 11, 2026

Is ancient stonework too precise to have been made with known historical tools?

Some ancient masonry and stone objects are extraordinarily precise, but the universal impossibility claim does not survive experimental archaeology. Hard abrasives, pounding, sawing, drilling, grinding, repeated fitting and skilled measurement can produce high-quality work. Exact workflows remain debated for individual monuments, but precision alone does not identify a lost technology.

Unsupported Reviewed Oct 11, 2026

Do blood-type diets improve health because foods are matched to a person's blood group?

Dietary patterns marketed for particular blood types can be nutritious, but available research has not demonstrated benefits caused by an ABO-specific food match. The 1,455-person 2014 study was observational—not a diet intervention—and a 2021 analysis of 68 participants in a vegan-diet intervention found no meaningful ABO-associated response difference. Neither is a randomized direct test of all matched versus mismatched ABO diets.

Contradicted Reviewed Oct 11, 2026

Can permanent magnets power a self-running motor indefinitely?

Permanent magnets exert real forces and can exchange finite stored magnetic and mechanical energy, but a repeating motor cycle must restore the same configuration before it can repeat. Work gained in favorable parts of the cycle is offset by the work needed to reset the geometry plus losses, so permanent magnets do not provide an inexhaustible net energy source.

Contradicted Reviewed Oct 11, 2026

Does microwave cooking uniquely destroy nutrients compared with ordinary cooking?

Direct comparisons do not support a unique nutrient-destruction effect from microwave cooking. In one original vegetable experiment, microwave broccoli retained more measured vitamin C than boiled broccoli, while microwaving showed larger vitamin K losses in some leafy vegetables. Outcomes vary by nutrient, food, water, cooking time and analytical method.

Contradicted Reviewed Oct 11, 2026

Is monosodium glutamate (MSG) inherently toxic and a common cause of serious neurological harm?

Human blinded MSG challenge studies do not establish that ordinary dietary MSG causes frequent or lasting serious neurological injury. Yet high-dose MSG given without food can elicit inconsistent self-reported symptoms, and EFSA set an acceptable daily intake for added glutamates and identified some exposure scenarios above it. The distinction is dose, endpoint and certainty—not blanket harmlessness.

Misleading Reviewed Oct 11, 2026

Are seed oils broadly toxic industrial poisons at normal dietary intake?

The blanket claim that ordinary seed-oil intake constitutes industrial poisoning is unsupported, but a blanket dismissal of adverse clinical findings is also unjustified. A recovered randomized Sydney trial reported higher mortality after a particular high-linoleic-acid safflower-oil intervention in coronary patients; a larger trial reanalysis found no mortality benefit, while a Cochrane review of omega-6 trials found no clear overall mortality effect. Oils, comparators and cooking conditions matter.

Inconclusive Reviewed Oct 10, 2026

Do aluminum-containing antiperspirants increase breast-cancer risk?

Aluminum salts can interact with biology and aluminum has been measured in breast tissue, so the proposed mechanism is not meaningless. Epidemiologic evidence, however, is limited and conflicting: a large 2002 case-control study found no increased risk, while a smaller 2017 study reported an association in a very high-use subgroup and higher tissue aluminum in cases. A 2023 systematic review found inconsistent evidence, while a 2024 meta-analysis of seven case-control studies of antiperspirants or deodorants found no overall association (pooled odds ratio 0.96, 95% confidence interval 0.78–1.17; substantial heterogeneity). The pooled exposure was not restricted to aluminum salts and the studies were retrospective. A causal increase in breast-cancer risk is therefore not established, but neither the pooled null result nor the high-use subgroup signal establishes certainty.

Unsupported Reviewed Oct 10, 2026

Do ancient catastrophe traditions record one global event?

Flood and catastrophe traditions are genuinely widespread, but similarity alone does not synchronize them to one event. Textual transmission, recurrent local disasters and divergent chronologies provide competing explanations, while proposed geological candidates such as a catastrophic Black Sea flood remain regional and contested.

Unsupported Reviewed Oct 10, 2026

Does Ezekiel's vision describe a technological spacecraft?

Ezekiel's vision contains wheels, fire, metallic brightness and motion, but close textual scholarship reads those elements within ancient Near Eastern theophany, cherubim, throne-chariot and cosmic imagery. No independent technological evidence makes a spacecraft interpretation more probative than the text's own religious-literary context.

Contradicted Reviewed Oct 10, 2026

Is high-dose intravenous vitamin C a proven stand-alone cancer cure?

Intravenous vitamin C reaches pharmacological blood concentrations that oral dosing cannot, and modern trials provide legitimate evidence of biological activity and possible benefit in selected cancers when added to standard therapy. A small randomized phase II pancreatic-cancer trial reported longer survival, while a randomized prostate-cancer trial found no benefit. These data do not establish vitamin C as a stand-alone cure, a universal cancer treatment or a replacement for evidence-based oncology.

Unsupported Reviewed Oct 10, 2026

Do homeopathic remedies work beyond placebo?

Some placebo-controlled homeopathy trials and meta-analyses show positive statistical signals. But their heterogeneous conditions, methodological uncertainty and lack of dependable indication-specific replication do not establish clinically meaningful effects of the remedies themselves. A 2024 independent evidence assessment found only low-certainty signals for two particular outcomes. The affirmative treatment claim remains unsupported.

Contradicted Reviewed Oct 10, 2026

Does ivermectin reduce hospitalization or death from COVID-19?

Early observational and small-study signals justified randomized testing, but larger randomized trials, trustworthiness-screened systematic reviews and a later meta-analysis of randomized controlled trials (RCTs) do not show a meaningful reduction in hospitalization or mortality.

Misleading Reviewed Oct 10, 2026

Do 'superfoods' have unique detoxifying or disease-preventing powers?

Foods marketed as superfoods can be nutrient-dense and some have measurable effects on specific risk markers, but 'superfood' has no standard scientific definition. Evidence does not show that a small set of branded foods has unique detoxifying or disease-preventing powers unavailable from a varied diet containing other fruits, vegetables, legumes, nuts, seeds and whole foods.

Unsupported Reviewed Oct 9, 2026

Does aspartame cause cancer in humans at ordinary approved dietary exposures?

The cancer evidence is not cleanly binary. The International Agency for Research on Cancer (IARC) classified aspartame as Group 2B, 'possibly carcinogenic to humans,' based on limited evidence, while the Joint FAO/WHO Expert Committee on Food Additives (JECFA) retained an acceptable daily intake of 0–40 mg/kg body weight because the evidence did not justify changing its risk assessment. A 2026 prospective cohort reported modest cancer associations without a clear dose-response. The claim that ordinary approved exposure is established to cause cancer is therefore not supported, but uncertainty remains.

Misleading Reviewed Oct 9, 2026

Does baking soda cure cancer by alkalizing the body or tumors?

Tumor acidity is a real research target, and bicarbonate has shown effects in animal models and route-specific early clinical work. That does not establish that drinking household baking soda alkalizes the body or cures cancer. Blood pH, urine pH, tumor extracellular pH and local bicarbonate delivery are different biological questions.

Unsupported Reviewed Oct 9, 2026

Can bioresonance reliably diagnose and treat disease through body frequencies?

Blinded studies of electrodermal and bioresonance-style allergy testing have failed to show reliable diagnostic discrimination, and a controlled atopic-dermatitis trial found no added treatment benefit. Some small trials in other conditions report positive outcomes, but they do not validate a general disease-frequency diagnostic or correction mechanism.

Unsupported Reviewed Oct 9, 2026

Does repeated cold exposure broadly prevent infections by boosting immunity?

Cold exposure causes real stress, inflammatory and circulatory responses, but evidence that it broadly prevents infections is limited. A large cold-shower trial reduced sickness absence without reducing illness days, and a 2025 systematic review found no clear pooled immediate immune-function benefit. Immune biomarkers, feeling resilient and actually having fewer infections are different outcomes.

Misleading Reviewed Oct 9, 2026

Are green lumps passed after liver flushes actual gallstones?

Soft green lumps passed after oil-and-citrus liver flushes are often presented as gallstones that were already inside the gallbladder. Direct chemical examination and ingredient-reconstruction evidence show that characteristic lumps can form from flush ingredients rather than represent pre-existing biliary stones. Ultrasound-measured stone clearance and claims about unnamed toxins are different endpoints.

Contradicted Reviewed Oct 9, 2026

Does German New Medicine correctly explain cancer and disease through psychological conflicts?

Stress and psychological state can affect health, symptoms and behavior, but German New Medicine's specific conflict-to-organ laws are not supported by modern cancer biology or validated clinical evidence. Treating its universal mapping as a replacement for diagnosis and evidence-based care can therefore misattribute disease and delay treatment.

Contradicted Reviewed Oct 9, 2026

Is gluten unhealthy for everyone?

Gluten avoidance is medically necessary for celiac disease and relevant to several other diagnosed conditions, but evidence does not show that gluten is inherently harmful to everyone. Some people without celiac disease report reproducible symptoms, yet blinded challenge studies suggest that gluten itself is not always the trigger and other wheat components can contribute.

Unsupported Reviewed Oct 9, 2026

Does grounding or earthing treat inflammation and chronic disease?

Grounding changes the body's electrical potential relative to Earth, so the intervention has a real physical effect. Small studies have reported changes in sleep, pain, blood measures and recovery, including sham-controlled experiments. But the clinical literature is small and pilot-scale, several influential papers have commercial or advocacy ties to grounding companies, and independent replication is limited. The proposed free-electron mechanism has not been established as a general therapeutic pathway.

Unsupported Reviewed Oct 9, 2026

Do mRNA vaccines alter or permanently integrate into human DNA?

A laboratory study showed that vaccine-derived ribonucleic acid (RNA) can be reverse-transcribed into deoxyribonucleic acid (DNA) in a liver cancer cell line under in-vitro conditions. That is not the same as stable chromosomal integration in vaccinated people. No direct human evidence currently shows that mRNA vaccination permanently rewrites the recipient genome.

Contradicted Reviewed Oct 9, 2026

Is raw milk inherently healthier and safe because pasteurization destroys its benefits?

Pasteurization changes some heat-sensitive components, but it does not remove the major nutritional value of milk. Raw milk can carry pathogens including Campylobacter, Salmonella, E. coli and Listeria even when produced on well-managed farms. The evidence does not support treating the small compositional differences as a net health advantage that outweighs the infectious risk.

Unsupported Reviewed Oct 9, 2026

Can Rife or frequency generators cure cancer or infections?

Electromagnetic energy has legitimate medical uses, and a small uncontrolled oncology study reported responses using tumor-specific amplitude-modulated frequencies. That is not equivalent to validating Royal Rife's historical machines or a general disease-frequency cure. Reliable controlled evidence for Rife devices as cancer or infection cures remains lacking.

Misleading Reviewed Oct 9, 2026

Do vaccines commonly cause lasting infertility?

Research into natural conception and assisted reproduction does not establish that vaccination commonly causes persistent infertility. Some inactivated-COVID-19-vaccine frozen-transfer cohorts report conflicting live-birth associations, including a concerning 2025 result requiring replication. Temporary menstrual changes and selected embryo-transfer outcomes are not measures of lasting population infertility.

Unsupported Reviewed Oct 9, 2026

Is the Wim Hof Method a proven general treatment for disease?

The Wim Hof Method has produced measurable physiological effects in small controlled studies. A 2014 randomized endotoxemia experiment showed that trained healthy volunteers could increase epinephrine and alter inflammatory cytokine responses. A 2024 systematic review found promising inflammatory signals, but also judged the underlying studies very low quality, small, heterogeneous and at very high risk of bias. That is not equivalent to proving treatment efficacy across diseases, and cold-water exposure has real safety risks.

Inconclusive Reviewed Oct 8, 2026

Does apple cider vinegar cause meaningful weight or body-fat loss?

Some randomized trials and meta-analyses report modest weight or body-composition effects from vinegar, but the evidence is unstable. A widely publicized 2024 trial reporting unusually large losses was retracted in 2025 after the analyses could not be reproduced and the dataset showed patterns inconsistent with random allocation. Earlier trials suggest a possible small effect, but clinically meaningful weight loss specifically attributable to apple cider vinegar is not securely established.

Contradicted Reviewed Oct 8, 2026

Do vaccines cause autism?

The vaccine-autism claim has been tested in large cohort studies, case-control studies, meta-analyses and evidence reviews. A 2019 Danish cohort of 657,461 children found no increased autism risk after measles–mumps–rubella (MMR) vaccination, including among children with elevated baseline risk, and a 2014 meta-analysis summing more than 1.2 million cohort study enrollments found no increased autism risk associated with vaccination, MMR, thimerosal or mercury exposure; overlap among contributing national cohorts means this is not a verified count of unique children. The 1998 paper that catalyzed the MMR claim was a 12-child case series, did not establish causation and was later retracted.

Contradicted Reviewed Oct 8, 2026

Do routine childhood vaccines contain hidden tracking microchips?

Vaccines are tracked as products through lot numbers, external barcodes, inventory systems and immunization records, but that is not the same as a hidden electronic device inside the dose. FDA ingredient information and current CDC vaccine-tracking documentation describe external product and record systems, not injectable trackers. The claim is contradicted by the physical and regulatory record.

Contradicted Reviewed Oct 7, 2026

Is recent global warming not primarily caused by humans?

Natural variability, solar changes and volcanism affect climate, but modern detection-and-attribution studies explicitly quantify those factors. The Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6) and the 2026 Indicators of Global Climate Change update find that human influence accounts for essentially all observed long-term global warming within uncertainty, with greenhouse gases the dominant warming driver. The claim is contradicted.

Unsupported Reviewed Sep 29, 2026

Was World Trade Center 7 brought down by a controlled demolition?

World Trade Center 7's visible north façade did undergo about 2.25 seconds of gravitational acceleration during one stage of its descent. That observation is real, but it does not identify the initiating cause. The U.S. National Institute of Standards and Technology (NIST) attributes the collapse to fire-driven progressive structural failure; a University of Alaska Fairbanks (UAF) study funded by Architects & Engineers for 9/11 Truth disputes that mechanism. The reviewed evidence does not establish controlled demolition.

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