You could also consider the rehashing of certain stories and themes as part of a large-scale autobiographical enterprise. Catching up with him at regular intervals, we are watching the construction of a lifelong narrative arc. It's a bit like a comic, one-man version of the Michael Apted documentary series 'Up,' a decades-long project in which that director caught up with the same group of people at seven-year intervals. I, for one, am looking forward to hearing about Birbiglia's next medical tests, not to mention how he is going to spin tales of Oona's growing up.