TikTok's monthly minting of new trends is fueling a rise of new aesthetics, including e-girl, clean girl, Y2K, fairy-core, alt, mall goth, cottage-core, coconut girl, dark academia and coastal grandmother in just the last year.
Why it matters: The fast fashion industry thrives on such rapid shifts, creating more and more cheap, lower-quality clothes that will end up in landfills as new trends wipe out old ones.