I’ve championed or developed four distinct disruptive technologies in database management. I started working on databases for the ARPAnet – the precursor of the Internet which had 47 nodes and was the largest network on earth. I advocated relational technology when it was considered an academic curiosity and introduced a new concurrency control technology that made consistency practical. More recently I created a radically new architecture for distributed ACID SQL databases. Now, my project is a critical re-evaluation of where we are, how we got here, and where we should be going. It’s going to be a wild ride.