Google paid $10 billion this year to fund the AI assistant now competing with Gemini inside Google's own Docs sidebar. That sounds insane until you trace the position Google actually built. Google owns roughly 14% of Anthropic. It committed up to $40 billion in April, plus 5 gigawatts of TPU capacity over five years. Every Claude query inside a Google Doc runs on compute Google sells and strengthens a company Google holds equity in. So the rival in the sidebar is also a revenue line and a…