Darwin can be delayed, but he's rarely denied.

So, a dude plummeted seventy-odd stories to his death in Hong Kong a couple weeks ago. What was he doing on the outside of a building, seven hundred feet above the ground? Was he washing windows or changing light bulbs or servicing an antenna?

No, he was trying to get a selfie for an Instagram post.

Theo Kindynis, a sociologist who has studied rooftopping, said that to many urban explorers, young rooftoppers who engage in made-for-Instagram antics are known as “dangle kiddies.”

“Remi’s Instagram is full of the same tropes — legs dangling in front of a cityscape, selfie stick on top of a mast, silhouetted figure on a ledge — that were already becoming cliché in 2016,” said Mr. Kindynis, a professor at Goldsmiths, University of London, referring to Mr. Lucidi.