Man surrounded by fragmented and cracked geometric shapes, each containing people inside
Casual friendships are key to our emotional lives, but these "fringe friends" are slowly disappearing.

Nikol Moses felt the itch to head somewhere new.

The pandemic made her a little stir-crazy, so two years ago, she decided to take the plunge and move from her native Melbourne to Brisbane — a two-hour flight down Australia's west coast. Self-described as both social and talkative, the now-22-year-old figured it'd be relatively easy to make new friends.

"Plot twist: I didn't. I spent probably nine months in Brisbane completely alone," Moses told me.