The more contextual a PL's semantics is the harder it is to make sense of a 
program written in that PL (the inverse is also true, that's why we don't 
program lining zeros and ones ) ... The problem with what you are asking is 
why yet another special case for slices ? why not one for channels ? why 
not using minus too for slices ? or multiply if my slice represents a 
vector ? some languages handle that with operator overloading in user land, 
Go just doesn't allow that. Adding more semantics to the plus operator 
would be against the goals of the language IMHO.  

Le samedi 17 septembre 2016 04:31:52 UTC+2, a écrit :
> Context enables homonyms in spoken languages and overloaded or polymorphic 
> notation in mathematics. Types do the same in programming languages. The 
> rationale for + over join() or cat() for string is equally applicable to 
> slices. a ++ b wouldn't be an unreasonable replacement for append(a, b...) 
> and append([]T, ...T) can stay as is but who needs it when you have []T ++ 
> []T{...T}
> On Saturday, September 17, 2016 at 12:31:31 AM UTC+1, 
> wrote:
>> Because Go creators have a strong opinion about what + means. I would 
>> argue the languages that engage into these sort of things especially those 
>> who allow operator overloading are antithetic to Go goals, but that's an 
>> opinion., I didn't create Go, I don't agree with all its design choices but 
>> understand why they were made. Go is only sophisticated in the way it 
>> handles concurrency. 
>> Le vendredi 16 septembre 2016 19:11:17 UTC+2, a écrit :
>>> I have not been able to find an explanation. Does anyone care to explain 
>>> or point to relevant documentation?

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