Presuppositional apologetics is a way of talking about or defending your beliefs or ideas. It means understanding the beliefs or ideas of someone else and then explaining why your beliefs or ideas make more sense than their beliefs or ideas.
Imagine you and your friend were having a discussion about whether monsters are real. Your friend says monsters are real and you think monsters are not real. In Presuppositional Apologetics, you would listen to your friend’s ideas about why monsters are real and then you would use your own ideas to explain why you think monsters are not real. You might talk about how there is no scientific evidence to prove that monsters are real, or that there are no sightings of monsters that have been verified. You would use your own ideas to prove why your belief is the right one.
At the end of the discussion, you would have provided a logical explanation of why you think monsters are not real. This is what Presuppositional Apologetics is all about.