Mystery solved. Near death experiences (NDE) have been explained–or have they? Some think so, others, after spending decades of research, have come to just the opposite conclusion. Why the difference? Skeptics seem to grasp at bites of information mimicking one aspect of incredibly intricate phenomena to deny its entire existence. What keeps popping up in the popular literature is how the “light” or going through a “tunnel” some people experience during an NDE can be explained as a consequence of oxygen deprivation, or from experiments on how electrical stimulation of the brain triggers the experience of light.