Proactive Meeting Preparation Briefing

There's no automated "here's your history with this person + suggested talking points" that runs ahead of upcoming meetings, and definitely nothing that goes out and researches a person on LinkedIn or elsewhere and prepares a 1-pager briefing for an upcoming meeting. The only thing that's close to what I'm looking for is asking the Wave Assistant chat directly, e.g. "what have we covered with John Smith lately," and it'll search across my past sessions and return something... not proactively using my calendar