It was never hard for small things. The hard part is when you have multiple people working on something, who all need to synchronize their mental model of all

It was never hard for small things. The hard part is when you have multiple people working on something, who all need to synchronize their mental model of all lifetimes in the project, or even in your own code when you come back to it in 3 months. Encoding this stuff in the type system is unbelievably useful. Zig improves a lot of things, and seems like a pleasant language in general, but this isn't a problem that it does anything to solve.