Databases that try to only reflect the entire truth as-is are like everyone working from a shared whiteboard. Databases setup to event source, ie reflect the t

Databases that try to only reflect the entire truth as-is are like everyone working from a shared whiteboard. Databases setup to event source, ie reflect the truth as it happened at each step, are like everyone working from a shared spreadsheet with change tracking. It's an entire extra dimension that makes reconciliating problems of conflicting actions in disparate systems possible.