We tend to believe that we are right in what we think we know.
But “what we know” isn’t always right.
Some things we used to “know” that aren’t so.
- The earth is the center of the universe.
- The earth is flat.
- The sun revolves around the earth.
- Disease is caused by humours in the blood. The cure is to drain some blood out of your body.
- Humans only use 10% of their brain.
- Cracking your knuckles causes arthritis.
- Eating carrots will improve your eyesight.
- Women are intellectually inferior to men.
