Humans have a compulsion to make things happen in their environment that’s so powerful it’s described by psychologists as ‘almost as basic a need as food and water.’ When researchers put people in flotation tanks and block their eyes and ears they find that, often within seconds, they’ll start rubbing their fingers together or making ripples in the water. After four hours some are singing ‘bawdy songs’. Another study found 67 per cent of male participants and 25 per cent of female participants so desperate to make things happen in a room that was empty of stimulus, except for an electric-shock
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