Racket, the language Arc is built on top of, can handle concurrency and parallelism, so it is possible. If someone has time/energy, that I don't know. However,

Racket, the language Arc is built on top of, can handle concurrency and parallelism, so it is possible. If someone has time/energy, that I don't know. However, Arc was initially written in sometime early in 2000s. I don't think dual-core processors became more common at home until later...