Paulo Pinto:
That is an implementation detail I would say,
It's not an implementation detail, it has consequences on the kind of code you are allowed to write, because it's not really a dynamic language. After the JIT compilation it's "statically" typed, with some niceties like the type splitting you have seen with the x variable. In Julia you can't write all the programs you can write in Python. But in practice the limitations are not a problem for the scientific code, and the advantages are great.
Bye, bearophile
