$scalar = ( 1, 2, 3 );
$scalar is a variable, it exists past this line, but ( 1, 2, 3 );
is a list of value, it does not exist past that line
@array = ( 'list item 1', 2, 'another value', 'yet another value ');
an @array is a variable, it has a name, it exists past the line, it is a bucket, you store scalars inside
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