You can build a web site in an hour, but it’s a very bad idea. On the other hand, if you talk about building a web site in one hour, enough, in the right way, and in the right places, people notice. And Google notices, which is equally—maybe more—important.
Now, let’s dissect, and maybe even undo that last part of what I said.
Google says that when you create content you need to make it attractive to people, and that attractiveness to Google will follow naturally. Sure it will; all you have to do is create content that rivals the volume and quality of mass media outlets spending ten of millions of dollars per month, and you’ll be golden.