Kalshi co-founder becomes youngest female billionaire in history > be @luanalopeslara > born in a small town in Brazil > first passion isn't business > it's ballet > enrolled in the Russian Bolshoi school as a kid > the most prestigious and the most brutal > 10 hours a day of training > academic classes on top > living away from home before most kids learn algebra > a decade of this > blood, blisters, perfection > dances the Black Swan in Austria > the peak of classical ballet > very few…