Early on, the comedian made a discovery: The unexpected punch lines he liked best required him to become a certain kind of narrator — to be, as he puts it, “effortlessly cruel for no reason.” Photo: Ryan Pfluger Walking into comedian Anthony Jeselnik’s home, a two-floor Hollywood apartment with wall-size windows, the first thing I notice is a large-format photograph hanging by his sofa. The photograph is from artist Rachel Hulin’s Flying series, an image called Flight of the Scholar . It