Okay, pretend for a moment I'm from a world that obeys the basic laws of chemistry and common fucking sense, and explain what you mean by avatar. I'll grant you the digital aspect as something possible despite the fact that it does not make a goddamn lick of sense and ignores basic things like the behavior of elements not to mention information does not interact with matter-- since we're standing on one like it, but you'll have to work with me on the rest.