The answer is 25 percent.
South Africa's official unemployment rate is 25.0 percent. While in expanded definition, the unemployment rate is 34.9 percent down to 36.1 percent which includes discouraged workers.
If you're trying to write a story that "ends with the words: How wrong he was" you may want to make the story about some kind of stance you make that he disagrees with. You could choose any topic that usually creates tension between people, such as politics or the environment.
Answer:
Because unlike other scientists at his time, he believed the Earth was the center of the universe. The opposite of the geocentric model is the heliocentric, where the Sun is the center of the universe (correct model).