<P> Related concepts and fundamentals: </P> <Ul> <Li> Agnosticism </Li> <Li> Epistemology </Li> <Li> Presupposition </Li> <Li> Probability </Li> </Ul> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul>

Which one of the following is an educated guess to explain a phenomenon