In 'The UFO Invasion: The Roswell Incident, Alien Abductions, and Government Coverups', the authors attribute alien abduction narratives to sleep paralysis and crop circles to human fabrication.

Authors

• Person: Not available Organization: Grokipedia
  Joe Nickell - Grokipedia

Sources

• Joe Nickell - Grokipedia grokipedia.com Grokipedia via serper

Referenced by nodes (1)

• crop circles concept