Last year, I was absolutely transfixed by Felix Baumgartner’s skydive from the edge of space. Indeed, while filling out a questionnaire for perspective jurors recently, when asked to name my three biggest heroes, I listed my Dad, the Chinese protestor who blocked that column of tanks in Tiananmen Square, and Felix Baumgartner. Red Bull has combined the footage from Felix’s jump, music by The Roots, and the line “The only limit is the one you set yourself” into the commercial below. I’ve seen it a dozen or so times over the last week (usually on Adult Swim). Today, at the grocery store, I bought two 4-packs of Red Bull — something I haven’t purchased since my heart attack almost two years ago. Subliminal? I don’t know. But I know I bought it and discovered that Red Bull still gives me heartburn…