It may not exist right now, but we can strive towards it. I believe that in a few years there will be an AI, or AIs, that will work completely autonomously. They will not only browser files, documents, and do research, but they will exist on their own, synthesizing information across organizations. That's going to be the 1000x improvements I am thinking about.

I wrote about it: https://news.ycombinator.com/item?id=42701691