If beyond scientific explanation then why is there so much ghost detecting technology/equipment? Are paras not comfortable with non explanatory events, do they actually believe there is a scientific explanation? What does normal scientific understanding mean to a para investigator?
If the answers are beyond the scope of science then all attempts to study it scientifically are somewhat contradictory in nature and designed to create a favourable impression. Seems that scientific understanding cannot be paranormal. I can only surmise that paranormal investigators don't believe in the paranormal.