It’s OK
to Be Wrong
Look back at your worksheets from the Young Skeptics activities. In “Predict, test, explain”, how many of your predictions turned out to be wrong? Count them.
Now: is that a bad thing?
💡 The Idea
Not at all! A wrong guess that you test and check is exactly how you learn. Scientists are wrong all the time. What makes science special is not that scientists are always right, but that science has ways of finding its own mistakes, and fixing them.
Three times science changed its mind
- Washing hands. In 1847, in a hospital in Vienna, a doctor called Ignaz Semmelweis noticed that many more mothers were dying after giving birth on the ward where doctors came straight from cutting up dead bodies. When he made the doctors wash their hands in a chlorine solution, the deaths fell sharply. But many doctors refused to believe him: they didn’t like being told that their own hands were carrying disease. Years later, when germs were discovered, everyone saw that he had been right.
- Moving continents. In 1912, a German scientist called Alfred Wegener suggested that the continents slowly move. Most geologists rejected the idea, because nobody could explain what could push them. In the 1960s, new evidence from the ocean floor showed that the continents really do move, and scientists changed their minds.
- Pluto. For 76 years, children learned that Pluto was the ninth planet. Then astronomers found many other small worlds like it, far beyond Neptune. In 2006, they agreed on a new definition of a planet, and Pluto became a “dwarf planet”. Textbooks all over the world were changed.
Skeptics must change their minds too. If a “miracle” ever passed a fair test, again and again, a good skeptic would accept it. That’s the difference between a skeptic and someone who just says “no” to everything.
But notice why these scientists changed their minds: because of evidence. Changing your mind because of evidence is very different from giving in because someone shouts louder, or because everyone else believes it (see Thinking Tool 6). And when there isn’t enough evidence yet, “I don’t know” is an honest answer.
A duty for every Indian
The Constitution of India says that it is the duty of every citizen
“to develop the scientific temper, humanism and the spirit of inquiry and reform”.
That’s Article 51A(h). Asking questions, testing ideas and being willing to change your mind aren’t rude or disrespectful. They are part of being a good citizen.
Changing your mind because of evidence
isn’t losing. It’s learning.
🔗 Where You’ve Seen It
- Activity 2: The Pendulum That Knows the Answer
The woman with the ring wasn’t lying. She was honestly wrong, and a simple test could have shown her. - Activity 4: The 1995 Milk Miracle
Millions believed a statue was drinking. The scientists who tested it explained the truth the very same day.
🌍 Use It Everywhere
In class, it can feel embarrassing to give a wrong answer. But the person who says, “I was wrong, and now I understand” has learned more than the person who never tried. The same is true for grown-ups, for scientists, and for whole countries.
Write down one thing you used to believe, but don’t believe any more. What changed your mind? Was it evidence, or something else?
Then ask a grown-up in your family the same question. You may be surprised by the answer!
For parents and teachers
- Model it: the most powerful way to teach this tool is to admit your own mistakes in front of children, and to show how you changed your mind.
- Semmelweis: see “‘Wash your hands’ was once controversial medical advice” (National Geographic).
- Pluto: see the International Astronomical Union’s 2006 press release, “IAU 2006 General Assembly: Result of the IAU Resolution votes”.
- Article 51A(h): part of the Fundamental Duties in Part IVA of the Constitution of India. See the text of Part IVA (india.gov.in).
A Young Skeptics thinking tool, written with the assistance of AI tools, and reviewed by our editors. — CHARVAKA DESK