“I mean, it sucks,” Smith said. Alex Smith addressed his demotion to backup quarterback with the media Thursday for the first time since 49ers coach Jim Harbaugh named Colin Kaepernick the team’s starter. Does he think his demotion will cause other players to conceal concussion symptoms? “I don’t know. It’s a good question. I’m not sure. When Smith told trainers during a Week 10 game against the Rams that he was experiencing blurry vision after being hit in the head, Smith set in motion a chain of events that could ultimately cost him a shot at earning a Super Bowl ring and $7.5 million in 2012 compensation. So, yeah, it sucks. The Niners’ version of Girl No. 1, quarterback Alex Smith, reacted on Thursday to the reality that, while he’s still one of Harbaugh’s guys, he’s no longer “the guy.” Smith was knocked out in the first quarter of the 49ers Nov. Instead of boy meets girl, boy loses girl, boy gets girl again, it’s been boy meets girl, boy publicly professes love for girl, boy evaluates second girl, boy professes love again for first girl, boy meets third girl, boy tries to date both as long as he can before kicking first girl to the curb.