LOS ANGELES (AP) — A horde of children chased host Conan O’Brien onto the Dolby Theatre stage in the opening moments of the 98th Academy Awards , and throughout an Oscar ceremony that saw “One Battle After Another” win best picture, it was like they never left. A queasy future, both immediate and for generations to come, pervaded an Academy Awards shadowed by war, political turmoil and whatever might happen to the movies in an artificial intelligence-supercharged tomorrow. These were the high