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Guillaume Luccisano Has Built Three YC Startups. The Third Began by Accident.
From Justin.tv to Socialcam, Triplebyte and now Yuma AI, Guillaume Luccisano has spent two decades following one instinct: build the working thing early, then let real demand make the argument.
Justin Kan
Justin Kan is a serial entrepreneur and investor best known as the co-founder of Twitch, the live streaming platform acquired by Amazon for $970 million in 2014. A Yale graduate who studied physics and philosophy, Kan pioneered lifecasting by wearing a camera 24/7 for Justin.tv in 2007, which evolved into Twitch and revolutionized gaming culture. He's launched multiple ventures including Socialcam (sold to Autodesk for $60M), served as a Y Combinator partner, and now invests through Goat Capital while building new companies in Web3, commerce, and music. Despite selling Twitch for nearly $1 billion, Kan has been candid about struggles with happiness, anxiety, and finding fulfillment beyond exits, making him a rare voice of authenticity in Silicon Valley's success-obsessed culture.