This is the biggest feature (for me) of Perl 6. Default to the normal dynamic typing, but add type annotations later on, as needed and/or desired. The Perl 6

This is the biggest feature (for me) of Perl 6. Default to the normal dynamic typing, but add type annotations later on, as needed and/or desired. The Perl 6 compiler will not only shift various warnings/errors from run time to compile time, it will also emit more efficient code!