“Magnum P.I.” has a place on the upcoming fall TV lineup. Women are rocking oversized blazers. “The Handmaid’s Tale” is part of our national Zeitgeist. Slice soda is on grocery store shelves.

If you didn’t know better, you’d totally think we’d taken a trip back in time to the 1980s. Whoa! But as it turns out, history is simply repeating itself.

Yes, it’s 2018. And geometric decor—linear motifs in a repeating design, often with lots of 90-degree angles and color gradations—is among the many 1980s trends making a comeback.