I think looking only at the number of dev jobs leaves too many potential confounding factors to be useful. For instance, how many C/C++ jobs are actually compan

I think looking only at the number of dev jobs leaves too many potential confounding factors to be useful. For instance, how many C/C++ jobs are actually companies who need those devs to move away from C/C++? What's the overlap? How much of the C/C++ share is maintaining legacy code vs starting new projects? Sure the data says something about it, can we draw any conclusions from it other than precisely the numbers you listed? Not really, not without more detailed data. One thing I would welcome is specifically looking at new sysdev projects over time and what languages they're in. To be clear I'm not taking a view on whether Rust will become the standard. I really don't know, and I've yet to see anything convincing me one way or the other.