Driving to pick up my prescription lenses, I listen to a radio show where the host is interviewing people about the one big regret of their lives so far. A woman tells the story of the girl next door who was her best friend all the way through to college: sandwiches and study hall, secrets, sleepovers. She's not exactly sure how or why they drifted apart. Another woman told a similar story about her college roommate and how close they became, until one of them had a bad opinion about a boyfriend. Both eventually tried to reconnect, after years of virtual silence. But in the first case, it was too late; when this woman finally rang her friend, it was to learn she'd just passed away from cancer. The second one worked up the courage to look up a phone number, and the long- lost friend returned the call. It was as though the empty decade before had never happened. Both women spoke of regret as the wish they'd done something sooner rather than later: not been afraid of what others might think of their awkwardness and shortcomings, not been concerned that their timing was off or if they might barge in where in the end they wouldn't be wanted. Both looked back or over their shoulder to see regret's younger sibling, hindsight— now all grown up and looking left and right before crossing the road.