We here examine some assertions made by Troy, a young earth creationist who has made some very unorthodox claims about conditions before the Genesis flood. He believes that the length of a day was much shorter before the flood, only 18 to 20 hours per day, and that the flood somehow changed this. As errors go, this is a fairly mild one, and there is nothing heretical or theologically damaging about such a speculation. But the way in which Troy attempted to defend his conjectures involved serious errors in reasoning, in science, and in biblical interpretation.
When Charles Darwin wrote “On the Origin of Species” in 1859, he employed an ingenious trick to persuade people of evolution. He linked evolution to natural selection, implying that natural selection was the mechanism of evolution. This was a clever trap because when something false (evolution) is linked with something true (natural selection), people are often fooled.
Our feedback this week once again comes from Peter who is still convinced that I have misrepresented the presuppositional method. Peter claims that (1) all forms of circular reasoning are fallacious and (2) that the presuppositional method as advanced by Bahnsen and Van Til does not involve any circular reasoning.
We previously covered the Münchhausen trilemma: an argument that knowledge is impossible because it can never be ultimately justified. Any (true) belief must be based on a good reason in order to be considered knowledge. But the reason is only good if it also is based on a good reason, which is based on a good reason and so on.
We saw previously that the Bible can make sense of laws of logic and their properties, and that the three laws of thought are rooted in the nature of God. However, non-biblical worldviews cannot make sense of laws of logic or their properties.
Laws of logic are the rules of correct reasoning. They reflect the way God thinks and the way we must think if we are to think correctly. Laws of logic are also called “rules of inference.” Correct reasoning can never violate a law of logic. There are many laws of logic. But three are considered the most basic or primary.