Where burly cane cutters once toiled, voracious machines now rattle through Australia's vast sugar cane fields, gathering in hours what once took weeks. Since the 1960s when a new breed of machines ushered in a dynamic new era of low cost, reliable cane harvesting, mechanisation has played a vital role in Australia's emergence as a world power in sugar production and exporting. Success has not come easily. The story of how Australians conceived and built the world's first and still the best practical sugar cane harvesters is as much about dogged perseverance as it is about creative genius. They're All Half Crazy is a fascinating account of grand dreams and harsh reality, human frailty and mechanical perversity, progress and disappointment.