For many of the great speculative science fiction classics, the future has not come to pass. The island of Manhattan was not converted into a maximum security prison by 1997. No manned space odysseys before or after 2001 have reached Jupiter. 2010 was not the year we made contact. The flying cars and bioengineered replicants of the dystopian Los Angeles of Blade Runner were not in place by 2019, and the hoverboards of 2024 do not actually hover, unlike the wheel-free skateboards of 2015 in Back to the Future Part II. But what about the future of James Cameron’s The