The Challenges of Microservices

After six years so far and counting of using microservices, I don't think there's enough time in the week to actually go through all of the challenges that are hurdles of microservices. Service granularity is hard. The other is really breaking apart of data. Data is interrelated. We've got foreign keys. And when we start forming bounded context, it sounds good on paper. So you actually try to do it,. And it's like, wait a minute, I need that data now.