Stories of ghosts have existed in every culture going back thousands of years. A recent survey conducted in the US revealed that 60% of Americans believe they have seen a ghost, and thousands of paranormal investigators are actively researching the topic around the world. Yet, the existence of ghosts is still not recognized by mainstream science, especially as hauntings aren't something you can recreate in a laboratory.

Firm believers in the paranormal tend to take a dim view of skeptics. They often deem them to be close-minded and pedantic, but a skeptic would view a believer in the same way. It's not that either group is close-minded. It's just that they've both already formed an opinion on the paranormal and will therefore, in most cases, only consider evidence that supports their stance.

For example, if a skeptic doesn't believe that it's possible to capture the voice of a spirit in audio form...