The note that Rust cannot fully replace C++ as long as it depends on using it for its key compiler backends.
Finally even if it is a bubble, AI driven programming is making specific languages irrelevant, eventually only AI language runtimes will need fine grained control how everything works, at the bottom layer.
Maybe the future is an AI language compiler generating machine code directly, with similar productivy as Xerox PARC workstations, Lisp Machines, or Bret Victor ideas.