I think the main reason they stopped referencing that claim is that "two-language problem" means too many different things to different people. But yes, real static compilation would be great.
I think this is correct. My understanding of the two-language problem was probably not the same as the one they claimed to solve. More likely they meant: write slow code in python and then optimize inner loops with c.
Anyways, I'm glad I did invest in learning Julia. Just disappointed it didn't save me from C++. On to Rust!
