Tech entrepreneurs gather at the offices of Y Combinator, a company based in Mountain View, Calif., that provides seed money to young startups. Founder Paul Graham predicts half of the startups funded by Y Combinator will ultimately fail. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR

Chef Javier Plascencia finds inspiration for his dishes at the Mercado Hidalgo, a huge indoor market in Tijuana Melanie Stetson Freeman/Christian Science Monitor/Getty Images hide caption

itoggle caption Melanie Stetson Freeman/Christian Science Monitor/Getty Images

Research scientist Leila Takayama poses with a PR2 robot at Willow Garage, a robotics company in Menlo Park, Calif., that produces programmable robots. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR