Last Saturday, 15 people stepped out of a cave in France, blinking in the sunlight. As part of an experiment, they had spent the last 40 days underground with no sense of time other than their own sleep patterns.
Last Saturday, 15 people stepped out of a cave in France, blinking in the sunlight. As part of an experiment, they had spent the last 40 days underground with no sense of time other than their own sleep patterns.
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