This is a tool called NotebookLM, an "AI first" notebook and study tool. This seems to be a tool for those technically literate enough to want AI in this, yet not competent enough to just string together Obsidian and Llama3.1. AI in notebooks is a marginal boost in productivity at best, and detrimental at worst. Deeply unserious product that is computationally inefficient qua computational inefficiency.