There was another post a while back about all the complex problems that arise from event sourcing — problems similar to race conditions that end up being really

There was another post a while back about all the complex problems that arise from event sourcing — problems similar to race conditions that end up being really tricky to solve. I've always wanted to build a small tool on top of event sourcing, but as long as the app is small it should probably be ok. But if it scales up, there's lots of room for massive errors. (Sorry I can't find the link)