In the first half of 2014, Mullen was invited by the O'Reilly Media technology company to present at its "Strata" and "Velocity" conferences, both of which were held in Santa Clara, California, US. Mullen's Strata presentation in February 2014 was titled "The Art of Good Practice" and consisted of an analysis of the nuanced way in which skateboarders practice their craft. Mullen then presented the "Build on a Bedrock of Failure" keynote in June 2014, in which he spoke of the way that "failure, pain, injury, recovery" are "embedded in the very notion of what it is to be a skateboarder."