Kids today know plenty, whether it's how to become a social media star on YouTube or how to navigate Snapchat. (It's a snap.) And at every step, their cellphones are close at hand, part extra appendage, part security blanket.

But cellphones are one thing.

And rotary dial models, quite another.

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Two adorably clueless 17-year-olds, Jake and Kyle Bumstead of Illinois, got four minutes to dial a number on a rotary phone. It was their first time using such a relic from a bygone age.

Imagine asking an English speaker to parse some Egyptian hieroglyphs.

In this case, it took the pair more than a minute simply to recognize that Step 1 involved lifting the receiver.

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“What’s with all the holes?” Kyle, on the right in the video, wearing the baseball hat asked, before finally realizing you have to stick your finger in a numbered hole and spin the rotary mechanism to dial a specific number.

Talk about the speed of progress.

EDITOR'S NOTE: A previous version of this report included an incorrect name and home state.