Sitting at the gate, twiddling your thumbs because your buddies missed out on the speedy pre-check lane. You prop up your carry-on, counting down the minutes. While the airport whirls with hurried travelers, you're in limbo. Checking the flight board, you realize there's still some time before liftoff. To kill time, you whip out your phone, scrolling through social media, double-tapping photos, and chuckling at memes. Dropping a message to your buddies, you gently remind them about the…