Network latency and distribution notwithstanding, one of Go's core goals is low-overhead concurrency. I'm not sure how GCD compares in Swift because I haven't

Network latency and distribution notwithstanding, one of Go's core goals is low-overhead concurrency. I'm not sure how GCD compares in Swift because I haven't spent a ton of time in it yet, but that could be a point of contention, particularly in a web scraper.