Notes"You may be running non-free programs on your computer every day without realizing it—through your web browser.Many sites still use Javascript that way, but some use it for major programs that do large jobs. For instance, Google Docs downloads into your machine a Javascript program which measures half a megabyte, in a compacted form that we could call Obfuscript because it has no comments and hardly any whitespace, and the method names are one letter long. The source code of a program is the preferred form for modifying it; the real source code of this program is not available to the user."Unfurl