Earlier quoted context omitted.
Are we really at the point where engineers can't find jobs because they only know C++ instead of Python and Ruby web stacks? This is a bit concerning, if so.
It happens. I used to work with a guy whose expertise was Java GUI development and who knew NOTHING about web stacks at all. He's been looking for work, and kept getting told that it was a big problem that he didn't know anything about web development. Someone even told him in an interview that he was getting dangerously close to the "point of no return" where his skills were so stale that he'd be unemployable anywhe…
For example, I'm willing to bet that 99% of the most successful iOS developers had not written a line of Objective-C until 3 years ago. Apple simply provided an opportunity and they embraced it, learning the skills they need to adapt.