Hey folks,I'm just starting an application and I need some help
understanding how to architect it. My application could potentially have
thousands of users, so I'm trying to build for it. Let's say there's
User A, User B, User C, User D, etc. User A may be "following" (the word
subscribed could work...but I don't want to get anyone confused) User C,
but not User B or User D. If User A is logged in and then User C logs
in, User A needs to retrieve an attribute from User C. Likewise, User C
needs ...