Ghosting - the Modern Ghost Story

In the 20th century, a ghost story involved someone who died but continued to haunt the living.

In the 21st century, a ghost story involves someone who is still alive but suddenly disappears to those around them.

The former is about a community so close-knit that people continue to interact even after death. The latter is about a community so fragmented and isolated that people stop interacting even while they're still alive.