Meant that it enables concurrency and parallelism without having to worry so much about the mechanics of it, which helps take advantage of multiple cores as described in the article. Immutable data structures and pure functions avoid data corruption when two or more threads are working on the same data. OOP requires a lot of code to get the same result, true?

I'm new to FP myself and it seems like if done wisely it simplifies multi thread, parallel processing quite a bit.