Except people don't only use Redis for caching or having a fast key-value database. Redis is also a very convenient way to share a state between multiple insta

Except people don't only use Redis for caching or having a fast key-value database. Redis is also a very convenient way to share a state between multiple instances of our software that need to have access to the same data. Just like we would have some dicts/lists/sets in RAM (in the heap) during the runtime of a single instance, we have that stuff in Redis so we can share data between multiples remote processes. That's it. (And it makes sense to keep that stuff in RAM, I guess.) We wouldn't use an SSD/long-term storage to keep heap memory of a running program, right? ;)