Michael Schermer thinks these are hallucinations. He is not a physician and does not know what true hallucinations are. -http://www.scientificamerican.com/article.cfm?id=why-near-death-experience-isnt-proof-heaven&WT.mc_id=SA_DD_20130415-He purposely ignores vericidal reports in which facts are gained by the experiencer from folks on the 'other side', facts that are given and known only thru the NDE.