Billionaire Tim Draper said took pitches while bathing in water under 40 degrees. Vaughn Ridley/Web Summit via Sportsfile via Getty Images Tim Draper said he took "52 pitches in 52 minutes" while sitting in an ice bath below 40 degrees. "Pitching in stressful situations allows entrepreneurs to relax when they need to," Draper told Business Insider. Ice baths and cold plunges have grown in popularity among Silicon Valley leaders. The deals may be flowing, but the founders are on ice. Billionaire venture capitalist Tim Draper backed Tesla, Skype, and Twitch. The early investments made him billions and boosted the VC firm he founded, Draper Associates. He recently looked for his next big deal in an unusual place: an ice bath. "I took 52 pitches in 52 minutes at below 40 degrees," Draper wrote on X on Wednesday. "Welcome to my office." Draper also included a photo of the ice bath. Four people sat around the cold tub, looking directly at Draper. Floating chunks of ice surrounded them.…