For today’s myth, I want to cover one that has its roots in some fundamental misunderstandings around video technologies. That is the idea that H.264 Video (deployed via the HTML5 video tag) will kill Flash. This is a more recent meme, which has spread with the growing awareness of the forthcoming HTML5, but is unfortunately based on some fundamental misunderstandings about Flash, video capabilities, and the web in general.
First, we need to clarify a few things.