Days after Google unveiled its first Gemini chatbot in 2023 to compete with ChatGPT, Jeff Dean went to an AI conference where he was promptly swarmed by attendees. Suddenly, the Google executive looked at his watch and realized he was due to give a talk minutes later, spurring a rush to take selfies with the influential tech leader before he left.Now, its the employees at Google who are bracing for the AI pioneers exit. Dean, who started at the company more than two decades ago, said Wednesday