Julia vs. D?

[Chris via Digitalmars-d]

On Tuesday, 6 May 2014 at 21:31:32 UTC, bearophile wrote:
> 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

So this basically means:

setName(name)
   userName = name;  // string type

extern module / cracker:

setName(5.0)  // Error or at least doesn't affect original 
userName

Right or wrong?