I watched the whole thing and was a bit disappointed I must say. The TLDR (or W as in watch perhaps) is essentially <i>if we write our programs in a map&#x2F;reduce (functional) style fashion then the compiler&#x2F;runtime can sometimes[1] choose between a parallel and a sequential implementation at runtime, depending on what computational resources are available</i>. Seems fairly obvious to me... I would have much preferred the 10 minute version of this talk.<p>1. Given that the underlying operations are order and grouping independent (associative and commutative) of course.