> Everything should be CQRS.

For systems, this is going to be painful: you want to be able to do things like "compare-and-swap" which are already an action and a query bundled in one. You need this for 2 reasons:

   - consistency: you want the query and the update to be done in one go. atomically
   - performance: doing it like this is faster as 
     you're combining 2 things in one call, iso 2.