Over a long enough timescale, it basically is inevitable, because no assumption is safe in unbounded time. There is that “technically” bit where you could just

Over a long enough timescale, it basically is inevitable, because no assumption is safe in unbounded time. There is that “technically” bit where you could just emulate the legacy, but as seen with Flash it’s easier said than done. (We could do better if we disregard copyright, but it wouldn’t be easy.)