Nice read. And nice to see Java running at the backend. I wonder whether Epic can solve its problems by rearchitecting more into a CQRS driven system with even

Nice read. And nice to see Java running at the backend. I wonder whether Epic can solve its problems by rearchitecting more into a CQRS driven system with event sourcing: store events in a more write optimized DB (e.g. Cassandra) and then process the events for fast reads through whatever is required for the usecases. Maybe they touched the limits of MongoDB to handle both, reads and writes at their scale.