<quote>C++ for example, is a hard language, but the learning curve is ... progressive (rise bit by bit).

Rust on the other hand, is like climbing a cliff </quote>

c++11+ is a hill that is so freaking high that you do not see the top.. like Olympus Mons.

honestly i do not see much difference in learning c++ or rust - in order to write good programs you should know most of the c++ standard and that's a lot to absorb.