Federal Trade Commission Chair Lina Khan speaks during the New York Times annual DealBook Summit in New York City on Nov. 29, 2023.Michael M. Santiago | Getty ImagesFederal Trade Commission Chair Lina Khan cited the surging stock prices of Nvidia and Arm as an example of how blocking mergers can lead to increased innovation.Speaking at a Bloomberg and Y Combinator conference on Tuesday, Khan said that when the $40 billion merger was called off due to "significant regulatory challenges" in 2022, ...