> Which is why usually there are other language or runtime features for deterministicaly managing resources besides just the GC. Other than what Rust (and its

> Which is why usually there are other language or runtime features for deterministicaly managing resources besides just the GC. Other than what Rust (and its research ancestors) uses, I haven't seen any alternative that isn't fundamentally broken in some way or another. > making it easier to write cyclic graphs I'd do it the same way I do it in any other language: initially create a DAG, then mutate it to create the cycles. This needs reference cells or something like that. Rust can do it already. > reducing even further the cases where one has to explicity type lifetimes. I don't see any way to do that in the vicinity of where Rust lies in the design space. What Rust has settled for (explicit lifetimes in type definitions, elision at use site) seems perfectly sensible to me. Of course, if a better alternative is found, that's a great thing.