weekly evidence drill

fact-check friday.

one claim goes up each friday. bring your verdict monday — with sources.

verdicts: confirmed · debunked · misleading · unproven. notes stay shut until we've argued it.

  1. week 01

    "The average person swallows eight spiders a year in their sleep."

    after we've argued it +

    Debunked — and beautifully: the "fact" is often traced to a piece written about how easily fake facts spread. The perfect week-one claim.

  2. week 02

    "The Great Wall of China is visible from space with the naked eye."

    after we've argued it +

    Debunked — astronauts, including Chinese astronaut Yang Liwei, report it is not. Cities at night, however, are.

  3. week 03

    "A penny dropped from the Empire State Building could kill a pedestrian."

    after we've argued it +

    Debunked — terminal velocity of a penny is too low. Physics does the fact-checking here.

  4. week 04

    "The CIA once spent millions training a cat to eavesdrop on the Soviets."

    after we've argued it +

    Confirmed — Acoustic Kitty, declassified 2001. The lesson: absurd does not mean false. Verify, then laugh.

  5. week 05

    "Humans only use 10% of their brains."

    after we've argued it +

    Debunked — imaging shows nearly all of the brain is active over a day. A myth with a century of staying power.

  6. week 06

    "Napoleon was unusually short."

    after we've argued it +

    Misleading — he was average height for his era; the confusion mixes French and English units, plus British propaganda did the rest.

  7. week 07

    "The US government seriously proposed nuking the Moon."

    after we've argued it +

    Confirmed — Project A119, a Cold War-era study. Documented by physicists who worked on it.

  8. week 08

    "Goldfish have a three-second memory."

    after we've argued it +

    Debunked — they can be trained and remember for months. Sorry to everyone who used this excuse.

  9. week 09

    "Einstein failed math class."

    after we've argued it +

    Debunked — he mastered calculus by his early teens and said so himself when shown the claim. Check the primary source: his transcript.

  10. week 10

    "Sugar makes kids hyperactive."

    after we've argued it +

    Debunked — double-blind studies find no effect; parents rate kids as hyper when TOLD they had sugar. A lesson in expectation bias.

  11. week 11

    "The FBI kept a file on Albert Einstein."

    after we've argued it +

    Confirmed — over 1,400 pages, released under FOIA. He was watched for his political views for decades.

  12. week 12

    "Medieval people believed the Earth was flat."

    after we've argued it +

    Debunked — scholars knew it was round since antiquity. The myth was largely invented by 19th-century writers.

  13. week 13

    "Lemmings follow each other off cliffs."

    after we've argued it +

    Debunked — the famous 1958 documentary footage was staged; the crew drove them. The camera can be the conspiracy.

  14. week 14

    "The Pentagon has acknowledged videos of objects it cannot identify."

    after we've argued it +

    Confirmed — but watch the leap: unidentified means unidentified. Where the claim goes next is where the grading starts.

  15. week 15

    "You can see the exact moment the Berlin Wall "fell" — one official announcement did it."

    after we've argued it +

    Confirmed, roughly — a botched press conference answer ("immediately, without delay") opened the gates that night. Accidents make history too.

  16. week 16

    "Water drains the opposite direction in the southern hemisphere."

    after we've argued it +

    Misleading — the Coriolis effect is real at hurricane scale, negligible in your sink. True physics, false application.

  17. week 17

    "A Michigan town once elected a dog as mayor."

    after we've argued it +

    Verdict for the class to run down — several US towns have had honorary animal mayors (Rabbit Hash, Kentucky, famously). Michigan? Investigate.

  18. week 18

    "This class made you harder to fool."

    after we've argued it +

    Unproven — until you cash in your day-one exit ticket this week. Let’s check the evidence.