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Showing posts with the label fact

The Basis of Action

      As I mentioned in my posting of August 28, the difference between a fact and a belief is, “When an event, idea, system, theory, etc. is supported by evidence, we accept it as a fact; when there is no supporting evidence we have a belief. Notice: we accept facts, we have beliefs.” Today I want to further explore the relationship between the two.       Facts can affect beliefs, but beliefs cannot affect facts. It is an asymmetric relationship: it applies in one direction only. Although it rarely happens, one's beliefs can be changed by facts. Here is a well-known example: Throughout the Middle Ages, Ptolemy, who died in 168 C.E. was considered the reigning authority on astronomy. His system explaining the movement of the heavenly bodies was based on the idea that the earth was the center of the universe, and everything else revolved around it. It was a belief held by everyone; the church in particular would allow no other expla...

Fact or Belief?

      A born again Christian once asked me if I believe in evolution. My answer was, “Evolution is not something one ‘believes in’ like one believes in a religion. I accept it as a fact because the evidence for it is overwhelming.”       Of course, no amount of evidence could convince my questioner that evolution is a fact and “creation science” is an oxymoron. But the conversation did cause me to ponder exactly what the difference is between a fact and a belief.       The difference can be explained in one sentence, although really understanding it can take a long time: When an event, idea, system, theory, etc. is supported by evidence, we accept it as a fact; when there is no supporting evidence we have a belief. Notice: we accept facts, we have beliefs. Here are a few examples: (1) I do not believe that birds fly – I accept it as a fact. I have seen pictures of flying birds, I have seen them fly and I hav...