Please do realize that there are youngsters who come across new terms, like linux, unix, design patterns, kernel, unix, oop, functional programming, open source

Please do realize that there are youngsters who come across new terms, like linux, unix, design patterns, kernel, unix, oop, functional programming, open source, SEO etc. and many others, every single day for the first time. Just because you and I have already gained (some) knowledge about these things, does not mean they will not be intellectually simulating for someone else, especially someone new to the profession/field.