There is a special kind of traffic jam that has nothing to do with cars. It happens on a sidewalk, in a grocery aisle, and right at the bottom of an escalator, and it is caused by one person who has stopped moving entirely because a phone has asked for their full attention.
Meet the phone zombie. Eyes down, thumbs busy, feet technically still attached to the ground but no longer participating in the journey. The rest of us are expected to navigate around them like they are a decorative pillar that somebody installed in the middle of the walkway.
The doorway zombie is the most confident variety. They walk through a door, take exactly one step, and then stop to read a text as if the entrance were a private reading nook. Behind them, three people, a stroller, and a man carrying hot coffee perform an emergency choreography that deserves applause.
Then there is the grocery aisle zombie, parked sideways with a cart blocking both lanes while they compare two nearly identical jars of pasta sauce through a screen. Somewhere in that phone is a coupon, a recipe, and possibly a message from the person waiting in the car. None of it requires a full stop in the only gap between the cereal and the canned soup.
The sidewalk slalom artist is trickier. This zombie does not stop. They drift. Left, right, left again, always at the exact speed that makes passing feel rude and staying behind feel like a life sentence. You clear your throat. You shuffle your shoes. You consider a polite announcement that another human is approaching at normal walking speed. Nothing works. The screen has them.
To be fair, almost everyone has done a short zombie impression. A map needs checking. A message really does need an answer. A photo of a dog in a tiny hat cannot simply go unappreciated. The crime is not looking at the phone. The crime is forgetting that the physical world is still running in real time all around it.
That is the truly annoying part. A quick glance is normal. A complete systems shutdown in a revolving door is not. Public space works because strangers silently agree to keep moving, stay roughly predictable, and not become surprise furniture.
So here is a modest survival rule, offered with love and mild exasperation: if the message takes more than three seconds, step to the side. Pull over like you would in a car. Find a wall, a bench, or any spot that is not a doorway, a stair landing, or the narrowest point in the entire building. Finish the text. Send the emoji. Then rejoin humanity at full walking speed.
Your phone will survive being ignored for the length of a hallway. The rest of us, meanwhile, would love to get past you before lunch.