Occasionally, apologists encounter discussions that all of reality is imaginary, as envisioned in several science fiction stories. (In one,our reality was the result of another being's dream, and it was waking up. They had to lull it back to sleep.) Sometimes the s elf-refuting Boltzmann Brains thought experiment is used. Another concept is drawn from The Matrix . How do we experience reality? Credit: FreeDigitalImages / Stuart Miles Presuppositional apologists will often ask unbelievers how they know what is real, and how they can account for their epistemology ( the study of knowledge ). How can we know that what we perceive through our senses is real or are we in a Matrix-like reality? Atheists appeal to their senses, but even without those imposed Matrix-illusion scenarios, this is not reliable as a universal principle. For example, someone with a mental illness or other altered state of consciousness may "see" and "experience" things that do not act
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