As of late, tech giants like Facebook, Twitter, Amazon and Google, are being perceived as evil for taking advantage of our deepest, darkest secrets and fears with one goal: to make us click on more invasive ads. Tristan Harris, who has been described as "the closest thing Silicon Valley has to a conscience," is trying to change that. But can an industry worth trillions of dollars, with some of the biggest egos in business, ever change to do the right thing?

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