Several experts, though, point to the use of transmedia, "the aggregate effect of multiple texts/media artifacts,"[2] as the defining attribute of ARGs. This prompts the unique collaboration emanating from ARGs as well; Sean Stewart, founder of 42 Entertainment, which has produced various successful ARGs, speaks to how this occurs, noting that "the key thing about an ARG is the way it jumps off of all those platforms. It's a game that's social and comes at you across all the different ways that you connect to the world around you."[2]