Marissa Mayer says AI assistants still feel like strangers because they're missing the one thing that reveals what your life actually looks like: "Why aren't LLMs as personalized as you want them to be? Why aren't they as proactive and able to anticipate what you need? Part of that is because they just don't have your context." "If I had to be your work assistant for a week, I'd want access to your email. If I had to be your personal assistant, booking dinners, buying gifts, buying clothes, I…