It is possible but it also means creating more data. I could easily see this being a pay element to gmail in the future. Basically it could be almost like a b

It is possible but it also means creating more data. I could easily see this being a pay element to gmail in the future. Basically it could be almost like a bot/spider/worker that gets a fairly recent snapshot of your data as metadata and allows you to clean up or organize based on it. It could be pretty tasking though and may need alot of engineering because right now your gmail data might be spread across thousands of machines. With more data/years this only going to get more tasking and costly. At a certain point with data we have been living in a relative small sandbox in terms of data. As our lives spread to terrabytes of data and across many services, we to will be unable to run atomic operations on the whole of your data.