Yes as mentioned above <!--comment--> is the best way to hide code. but not the only one.
I also use this method for data tags in the HTML, <!--tagname--> then do a replace of the <!--tagname--> with some data, code or other inline code, then I can keep the hTML as a template and in a complete structure.
As I mentioned other methods to hide code, and be able to control it is to place the code inside <DIV> tags....

I wonder if what he really means is the Quality driven practice of 2 Developers working together on a single Keyboard as apposed to a Single Gatekeeper who drives the development and all modules and developments are handed to the gatekeeper as a build owner?
Working as a Programmer and Analyst since 1989, I have heard of many terms that Marketing people like to come up with that have no or nearly no difference in the physical world, and only...