Just because someone has only driven Nissan and Chevrolet trucks doesn't mean they are not qualified to drive a FORD truck. This is analogous to many higher-level programming languages. Java and Python its probably not really much of a leap (yeah they do concurrency and threading different but suspect a qualified person could figure that out. However, C/C++ and Python/Java (either way direction) it probably a bigger deal. It might not be a big leap between C++, Rust, and GO.
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Just because someone has only driven Nissan and Chevrolet trucks doesn't mean they are not qualified to drive a FORD truck. This is analogous to many higher-level programming languages. Java and Python its probably not really much of a leap (yeah they do concurrency and threading different but suspect a qualified person could figure that out. However, C/C++ and Python/Java (either way direction) it probably a bigger deal. It might not be a big leap between C++, Rust, and GO.