In looking at these samples, I think Arc may suffer from the unicycle problem: while the unicycle is the simplest pedaled vehicle, that simplicity makes it the hardest to ride. This greatly limits who can successfully use it. If Arc's designers intend a language with the utility of a bicycle, they must make certain there is enough structure for people to balance, steer, and brake. But at this early stage, Arc looks more like a language for stunt programming.
