Facebook co-founder Sean Parker said the company was built to exploit human psychology: A like or a comment on a post sends users "a little dopamine hit," he said, encouraging them to post again. • r/worldnews

Facebook co-founder Sean Parker said the company was built to exploit human psychology: A like or a comment on a post sends users "a little dopamine hit," he said, encouraging them to post again. (cnbc.com) Once I read about an experiment that was made on mice.

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