A HPANWO TV reportage of a live event by the London Fortean Society with Prof. Chris French, A Skeptic's Guide to Aliens, see: http://forteanlondon.blogspot.com/2019/11/a-skeptics-guide-to-aliens.html.
Prof. French believes that all claims of alien contact can be explained by psychological phenomena such as sleep paralysis and false memories.
Is he correct?