Are they? If they are, then other things we do for pleasure must also be, right? Are videogames? Books? What about theater? I painted my office lavender last

Are they? If they are, then other things we do for pleasure must also be, right? Are videogames? Books? What about theater? I painted my office lavender last year, was the industry that made that possible a frivolous use of energy? What about eating beef? Certainly a hamburger is as frivolous as a frappucino, right? Or, it could be that none of the above are frivolous at all...