The difference between Pony and Rust is that Pony allows easy reference cycle.
One of the innovative point of Pony is the iso reference. iso reference means that an object graph is accessible from only that iso reference. It avoids sharing mutable data.
Pony also seems to hide more complexity and come with more batteries included than Rust, making it a little closer to the spirit of Go in that sense. That’s my first impression.
One of the innovative point of Pony is the iso reference. iso reference means that an object graph is accessible from only that iso reference. It avoids sharing mutable data.