Why does Mark Zuckerberg look... like that?

Mark Zuckerberg looks different. His hair is longer and less restrained. His clothes hang from his frame with an enviable ease, and a rotating repertoire of link chains adorn his neck. For years, Zuckerberg applied the same daily diet of dark wash jeans, gray fitted tees, dad sneakers, and a close, cropped haircut à la his idol Augustus Caesar.

Now, it looks like he has taken a sartorial chill pill.

Online, reactions have been positive enough that Zuckerberg has begun to engage in the discourse.