This week: Writer-actor Emily Mortimer (“Doll & Em”) puts friendships under the lens, makes us laugh and squirm… Julie Klausner, co-mastermind of the new comedy series “Difficult People,” tackles your questions with ease … Pop musician Destroyer (a.k.a. Dan Bejar) invites Van Morrison to the party, three times… The day the sun (almost) exploded, as told by George Carlin’s daughter Kelly… Ootcha, a potent new tea trend…We re-read Joan Didion, chronicler of culture (and clash). Plus, the real Uncle Sam, the un-dead Terry Gilliam, and the coolest shroom in the room.