Introducing Concurrency in the Raps

Swift's new concurrence features have a transformati effect on your ap architecture. You don't need to, uh, rewrite your entire apt to start adopting swift concurrence. It really takes what is currently an architecture around concurrency that is kind of imbedded in your code and brings it up to the type system level. So when you were previously, perhaps passing some kind of controller or manager object all l over your code base and accessing properties in a very unsafe way, well, actors stop you from doing that. There are definitely ways to make all of that code compatible.