The main property that's really important is that Monty VM state is fully serializable and resumable. So you can run the VM code until you get to a host call, t

The main property that's really important is that Monty VM state is fully serializable and resumable. So you can run the VM code until you get to a host call, then serialize and persist the state to disk. Then, at a later time you can resume the VM with the tool call results. Even Luau (which was made for sandboxing user code) don't really have this property.