"My look alike" trend

My look alike trend. Hey friends. Can somebody please explain to me the my look alike trend that's going on on TikTok right now? I've been seeing a few other people talking about it and apparently what it is if you go to your search bar and you type in my look alike, it will scan your face and it will match you with somebody out there in the world that looks like you. I don't know how that's even possible. Are they just copying your face? Is there somebody out there that looks like you? I have no idea how this works. So I'm asking, if anybody knows anything about this trend and if it's real, not real, how it works, please leave it in the comments below because I honestly think it's kind of creepy. I don't know how that's even possible. Are they just copying your face? Is there somebody out there that looks like you? I have no idea how this works. So I'm asking, if anybody knows anything about this trend and if it's real, not real, how it works, please leave it in the comments below because I honestly think it's kind of creepy.