If you're on X (formerly known as Twitter) and you've seen a bunch of brands ask you to "tap, hold and load in 4K," you might be confused. I know I was. But it turns out this is definitely a thing. If ...

If you really do tap on an image on the mobile app version of X and hold down your finger, you can save an image in 4K. Pretty cool! No one really knew about it. And per Know Your Meme ...