Not just that of "Time," ours too. From live updates straight from his toilet to his plans for settling on Mars, this is the person who is the world's wealthiest and the most influential.
It was the year that Elon Musk got serious. OK, so maybe you can't attach the word "serious" to the name of a person who tweets live from the bathroom about what he calls "a few friends jumped into the pool." But if you look at the change that has occurred in the way Musk was perceived only a few years earlier, then yes, it is clear that his tangible achievements and the dramatic effect of his vision on all of us, on our daily lives, they are serious. Very.
We nearly forgot that at the start, he looked somewhat like a charlatan, who makes money from money in the best case situation, and exhibits bizarre mannerisms of villains from the James Bond movies of yesteryear. When our parents run to order a Tesla without ever having seen it or talked with anyone; when the global automotive industry is forced to follow his lead and bury the internal combustion engine; when NASA signs with him a contract stating that he will build rockets for them, including one that will put men and women on the moon, for the first time in half a century; then yes, this is the moment where Musk stops being a curiosity that everyone thinks, "it's all a bluff, he will fall sometime" to someone who is shaping the world's vision and the hands that rotate us. We have all read about Alexander Graham Bell, Thomas Edison, and Nicola Tesla (the man, not the car). But they were not men of our times. Musk is someone of these dimensions, here and now.