The problem is that your 20% isn't the same 20% as anyone elses 20%. If you want a more thorough explanation, go read a book. Many are available for free on si

The problem is that your 20% isn't the same 20% as anyone elses 20%. If you want a more thorough explanation, go read a book. Many are available for free on sites such as archive.org and programming-motherfucker.com