There is something about Opening Day in baseball that looks back even as it looks forward, a Mobius strip twist in time during which the past and future co-exist. The T-Mobile magenta carpet is rolled out, then rolled back for another year. One elevator attendant wore a button proclaiming this to be their fourth opening day; another, their 23rd. The pageantry at the ballpark is familiar, if staffed by new faces: different kids running around the bases and announcing “play ball”; a national anthem from a member of a band many of us have been listening to since the days of burning CD mixes.