I read the list of comments and I find disappointing too see people saying things like "he talk simple stuff", or "this is too basic, I got nothing out of it"<p>I love those talks, and every once in a while I watch them again so I don't forget the basic principles.<p>Rich went 2 step ahead than simple state what some people feels as obvious: he created a language that implements them, and he communicated those concepts.<p>He did something to better the trade. Have you?<p>This is not about the next tool to make a quick buck, or cute, but impractical, philosophical concepts<p>And, I too would put "Simple made easy" as the first one. Then it becomes much easier to understand why functions are the 555 chip of software development.