Results of several surveys across large population sets indicate that between 18% and 38% of people have experienced at least one precognitive dream and 70% have experienced déjà vu. The percentage of persons that believe precognitive dreaming is possible is even higher - ranging from 63% to 98%.

Precognition, also called future sight, refers to perception that involves the acquisition of future information that cannot be deduced from presently available and normally acquired sense-based information.