I&#x27;m having a hard time understanding where you would want concurrency without the benefit of parallelism where available? I also personally consider the idea of single-core concurrency as &quot;not parallelism&quot; to be semantics. It may not be <i>truly</i> parallel, but both routines are getting CPU time in the same algorithm, so, in terms of programmatic considerations, to me the two (at least with Go) are basically the same.