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sub evalop
{
        my (@list) = @{[@{$_[0]}]};
        my $val = shift(@list)->();

   @{$_[0]}     # easy --- deference an array reference
[  @{$_[0]} ]    # ok --- turn it back into an array ref.. why?
...
                             # we have an array, but how is it 
                             # different from the first array we
                             # dereferenced?