Re: Trying to learn templates, but its hard to understand.

[kcvinu]

Ha ha, Those comments raising a question in my mind, especially Araq's comment. 
He said 
    
    
    Sorry, but I don't want sugar for this sharp knife. cast is the most 
dangerous feature of Nim, it's deliberately designed to be ugly.
    
    
    Run

How do we do type casting without danger ?