I remember back around 2007 all the anxious blog posts about the free lunch (Moore's law) being over. Parallelism was mandatory now. We were going to need exotic solutions like software transactional memory to get out of the crisis (and we could certainly forget about object orientation).
Meanwhile what takes the crown? - Single threaded python.
(Well, ok Rust looks like it's taking first place where you really need the speed and it does help parallelism without requiring absolute purity)