15 volunteers have emerged from a sunless cave in Southwest France, where they resided for 40 days without clocks or outside contact as part of a study on time. The experiment, referred to as “Deep Time” and conducted by the Human Adaptation Institute, removed natural cues and chronological bearings to see how the participants reorient themselves and relationship to sleep. Volunteer vitals were monitored “by a …
“Deep Time” Scientific Study Had Participants Live in a Sunless Cave for 40 Days