The global technology industry is a powerful engine of innovation that drives the economy. It's also a collection of insular communities full of hidden projects, quiet rivalries, and uncomfortable truths. Join Bloomberg Technology's Brad Stone each week as he and the team's reporters uncover what actually happens behind closed doors.

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Just a few years ago, Fab.com was valued at $1 billion. Today, it's remembered as one of the most epic flame-outs in the history of U.S. technology startups. Bloomberg's Sarah Frier, who in 2013 was the first to report on Fab's internal turmoil, talks to founder Jason Goldberg about how he felt as the company soared and then collapsed. Jason also recounts the lessons he's learned -- so he won't repeat them as he prepares to launch a new business all over again.

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Very few things have stopped Uber in its quest for world domination -- except Didi, the Chinese ride-hailing startup that in August announced it will buy Uber's China operations. This week Lulu Chen and Brad Stone tell the story of how Didi rose to prominence, and the battles its founder Cheng Wei waged to defeat dozens of Chinese rivals before taking on Uber. Now that it's conquered the world's largest ride-hailing market, can Didi finally make money?

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