Former ballerina Luana Lopes Lara, 29, is now the world's youngest self-made female billionaire after her prediction market startup, Kalshi, reached an $11 billion valuation. Enduring rigorous ballet training and academic challenges, she transitioned to tech, co-founding Kalshi with MIT classmate Tarek Mansour. The platform's success, despite regulatory battles, highlights her resilience and entrepreneurial drive.