‘Chaos is a Friend of Mine’ tells McGregor’s journey to becoming one of the most controversial sports stars of the 21st century, loved and loathed in equal measure, a divisive figure who, by 2018, was a multi-millionaire champion shacked up in Las Vegas and waiting for his latest superfight. A wonderful rags-to-riches tale? Dedicated athlete? Cultural phenomenon? Troubled soul? Out-of-control kid? Confused young man? Narcissist? Arrogant thug? Sporting icon? McGregor is any and all but, crucially, more than most sporting stars, he is also a mirror of society.