Nvidia CEO Jensen Huang.Philip FONG / AFP via Getty ImagesNvidia CEO Jensen Huang is entering his social media era, using X to explain the AI ecosystem.His early lesson plan maps closely onto Nvidia's business interests.Huang's teacher persona can help engender trust in Nvidia, experts said.Jensen Huang is getting more social.Since joining X last month, the Nvidia CEO has posted about everything from aging chips to financing the AI buildout. But…