Today's strip features a musical in-joke so obscure and unfunny I'm ashamed of myself, and if you got it you should be too. Alice's four and a half minutes of lost time refers to a famous/infamous piece by the American Zen master composer John Cage, who investigated lots of sounds including silence. It's called 4'33", which is how long the performer is instructed to sit without playing anything; this makes the audience aware of the ambient sounds of the performing space, especially if somebody's stomach gurgles, or worse. And I figure Alice, as a 4 year old, places some significance on the number 4 and a half as that's her next step up.
