<prompt> A false belief unexplained by reality, shared by a number of people is:SuperstitionIllusionDelusionObsession  <response>: A. i.e. SuperstitionNormal thinking is characterized by smooth continuous flow or fluency continuity, reasonable speed, clear goal directed logical organization clarity organization, with a logic, sequence, intent and control. Whereas, constantfirm belief held on inadequate grounds is delusion. 