Hacker News Reader

Are you trolling right now? R's idioms for parallelism are pretty darn straightforward and easy to use. Effective too.

What makes you think R or Python are bad at parallelism? My experience is that both are very decent.

Both have packages that can manage subprocesses. Both have inherently single threaded interpreters.

What technology in what language are you comparing them against?

Humans are very good at doing things successively and calling it parallel.