Picking an example at random: <a href="https://github.com/raganwald/javascript-allonge-six/blob/master/manuscript/markdown/3.Collections/4.drunken.md">https://github.com/raganwald/javascript-allonge-six/blob/mas...</a>, I'm not sure what the real purpose of the book is... it seems to present overly elaborate ways to implement basic "good" algorithms, followed by a simple way to implement the parallel naïve algorithm. And it fails to provide a comprehensive summary of the potential benefits of the naïve algorithm, in this case that fewer cells would need to be read out (the person could be reading out commands for twice as long in the "good" algorithm!).<p>I'd much prefer to have the simple and good implementation, or one that starts out simple and works towards complexity based on explicit optimization tradeoffs, but that would appear to be outside of the scope of the book.