I'd disagree. It depends on the use case a lot but I encourage people to reach for reference counting when they have complex lifetimes. The cost is almost alway

I'd disagree. It depends on the use case a lot but I encourage people to reach for reference counting when they have complex lifetimes. The cost is almost always trivial and for most use cases the lifetime analysis is clear and unlikely to become a problem in future refactoring. There is obviously always some nuance, but I find that there is a wide useful space between Rcs that can be avoided quite simply and making dramatic changes to your code to avoid an Rc.