After finishing various levels of schooling, training and employment, and upon reaching a certain age, encountering a heretofore unknown activity provokes surprising interest. When that activity is designated with an equally novel term, the curiosity only heightens.Consider “skiplagging.”Would-be air travelers frustrated at the high cost of flying from Point A to Point B might ordinarily weigh traveling on less convenient dates, resort to transport by train, bus or car, or perhaps settle for visiting less …