I recently stumbled upon this tweet from Aaron Lewis: “what if old tweets were displayed with the profile pic you had at the time of posting. a way to differentiate between past and present selves.” ​ I’m going to set aside for now an obviously and integrally related matter: to what degree should our present self be held responsible for the utterances of an older iteration of the self that resurface through the operations of our new memory machines? ​ What I’m reading into Lewis’s proposal then is an impulse, not at all unwarranted, to reassert a measure of agency over the operations of digitally mediated memory. ​ Yes, that was me as I was, but that is no longer me as I now am, and this critical difference was implicit in the evolution of my physical appearance, which signaled as much to all who saw me. No such signals are available to the self as it exists online.