Betting on a future event — like, who will be a bridesmaid at Taylor Swift's wedding — is the whole point of prediction markets. Every year, Americans spend billions on these kind of bets, but Canada hasn't fully opened the door to them. So, should we let this type of trading in, put restrictions on it, or just say no? Also, what's old is new again as more Canadians take up film photography. And we find out how Nike lost its cool factor.