Well, just like life and other organic systems, we find that our perl knowledge is constantly evolving. Our better way of perl coding comes out of necessity. Necessity is the mother of invention. In our case, invention means enhanced perl knowledge. Now if you increase your necessity you are bound to find new things in perl. If you think that core structure cannot accomplish that, you will even build a new version of perl.

Good thing about perl is we have great CPAN repository and sites like PerlMonks. It also represents the efforts of thousands of people ( Perlmonks alone has 6200 writers in total). Users around the world constantly find or write shortcuts (Modules and other titbits) to fulfill their necessity and is readily usable by others when it becomes their necessity. Thus for your own code you may find better ways to accomplish that because your thoughts are joined with thoughts of thousands of others over time, which already has enhanced your thinking and ways of doing the things. There could be minute things for which you think 'traditionally' or accept subconsciously, others would put a systematic efforts and make it better. When your eyes see that, you adopt that easily and thus improve your code. I think it is synonymous which the fact that we in our daily life use hundreds of things invented by others to improve our own life continuously.

We have adopted TMTOWTDI for perl, and thus a constant background thinking that 'there is another way to do it and which might be better' is always there. People are motivated by this vary formula to search for the new things. (ex.. Columbus) In addition to that, Perl has various means of symbols and thus we can see the same thing is used in different context and light. (Obfus are good examples of this.) And with thousands of simultaneous efforts we see more and more of that. This fact also increase our understanding about that same thing and subconsciously aids our efforts in learning perl emphasizing the fact that there is much more to learn.

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