What goes around, comes around, and fashion is no different — we’ve had halter tops, butterfly hair clips and jelly sandals all make a comeback in the last two years.

Aughts nostalgia has been going strong since the early 2020s, but what exactly is the Y2K aesthetic? From what’s trending these days, you might think of bedazzled logos and low-rise jeans, but ...

Zachary Loeb, Purdue University assistant professor, tells NPR's Juana Summers that the real story of Y2k wasn't about computers run amok. It was about experts sounding an alarm, and fixing problems.

Y2K: How the 2000s Became Everything (Essays on the Future That Never Was) | By Colette Shade | Dey Street | 256 pp. | $29.99. Alexandra Jacobs is a Times book critic and occasional features writer.