While Hollywood parades in tuxedos and gowns, grandly celebrating itself, a freewheeling cacophony of quips and sarcasm — something like a digital, million-times multiplied version of those balcony Muppet onlookers, Statler and Waldorf — will provide a welcome and riotous counter-narrative to the pomp. The second-screen experience is never better than on  Oscar night, when a separate (and some might say superior) entertainment experience plays out on social media.