Mikaela Shiffrin’s quest for history “was finished basically before it even started.” Headed down “The Ice River” just after 9:30 a.m. on Monday trying to become the first U.S. skier ever to win three Olympic gold medals, Shiffrin—11 seconds into her 2022 Games debut—slipped. She says her skis gave way, and “well, the day was finished basically before it even started.” Shiffrin won the giant slalom at the 2018 Olympics and has raced it dozens of times since, but Monday was her first time not finishing the course. “Um… I… it’s hard to know exactly,” she said of what happened. “We can go to a lo…