 So if you're doing any of this, you probably also know how to use a fax machine, a VHS tape, and maybe a page or two. And finally, this coming in at number five, speaking of old, oh my gosh, have you ever heard of mewing? Mewing. And if you are a teenage guy, you know what that is. And if you're not a teenage guy, it's some videos that have been seen like over 15 billion times.