You seem to believe that parens force list context. That's wrong, parens do only group and influence precedence (with the exception of the empty list).
A scalar is technically just a one element list.
There is no functional² difference between
@list= (1) and @list=1 or between
@list= (1,2,3,4);¹ and
@list=(1,(2,3,(4)));
It's the comma operator which builds the list value (in list context).
UPDATE: ¹)Parens corrected, THX chromatic! :)
Added second example.
²) Ikegami pointed out in a /msg that different grouping force different optrees, but of course the result is here the same...
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