If the idea of Rugby 360 feels familiar, it’s because the sport has been here before. Breakaway formats have been flouted since before Union opened the books. Back in 1994, there was the Kerry Packer World Rugby Corporation, which courted much publicity but ultimately failed to get off the ground (Packer Sent packing). In 2019, we had Rugby X led by Ben Ryan, a variant of Sevens, which, after its only tournament, vanished without a whimper and little trace.  There are others.  In truth, a breakaway variant of the game has only been successful once in the history of the sport, 130 years...