Bought yourself a mare in Lexington this week? Good for you. You have kept the faith. In many cases, that will be because you have seen it all before: you've ridden out bumps in the economy, and eked out value from these stoical and enduring creatures by borrowing their impassive engagement with the patient rhythms of Nature. It's a long game, after all, one that will absorb pandemics and presidential cycles like a passing April shower. But even the longest journey starts with a single step. And many of you...