You may compile, linking binary libraries compiled with different versions is a different matter, especially if there are relevant changes between versions on either the standard library, or other dependencies.

Eventually we will all be writing COBOL and how English turns into machine code is irrelevant.

And Mojo will die because nvidia is not interested in maintaining any semblance of backwards compatibility when it comes to CUDA. It's going to be a perpetual race forwards, and whenever nvidia upgrades CUDA, you're going to be stuck there twiddling your thumbs and waiting for Mojo to become compatible.

Additionally, anyone who has seen how Swift evolved should be wary of Lattner saying "the language is mostly stable", or even "the language is released".

This is the team behind MLIR, they have been in this field for 10 years or so.

Does it? Mojo was announced 6 months after ChatGPT was released.