To fully understand this debate we must decide what is a wheel, and what is a door, and of course what isn't a wheel or door. This is the main source of confusion within this debate.
According to the oxford dictionary, a door is defined as a hinged, sliding, or revolving barrier at the entrance to a building, room, or vehicle, or in the framework of a cupboard. The
Merriam-Webster dictionary defines it as a usually swinging or sliding barrier by which an
entry is closed and opened. Definition 1 is the only relevant definition. Pictures or drawings of doors, your jaw, your eyelids, or the valves in your heart do not count as doors. I bring these up because these are examples some members of the desperate Door Gang™️ have brought up in discussions.
The oxford dictionary gives this as the definition of a wheel. A circular object that revolves on an axle.
To better understand this question
let's bring up the tweet that started it all. The question clearly states Do you think there are more doors or wheels
in the world.
Because of the specifics of this question, doors from The Matrix, Monsters Inc, or other movies or video games are invalidated and null.
A large discussion in the debate is vehicles, so we'll start there. A standard car has four doors, plus hood, and trunk. I'll count those as you could technically enter that space. The gas tank does not count. You may also have a sunroof, so we'll count that as a bonus for the doors. That's seven doors per standard car.
For wheels, however, there's the standard four tires, including steering wheel, and spare tire. Six tires per vehicle. Or is there?
Volume control wheels are wheels. So we'll count those. Including the volume, tuner, AC/Temperature slider x2 (for dual sides), and PRNDL (on some newer models). That is 11 wheels per vehicle. Likely more if you continue to count whatever additional wheels you may have on your car model, however I imagine it averages out to 11.
If we're counting volume control knobs as wheels, then you must count the amount of wheels in something like the interior of an airplane, with dozens of wheels (not even counting the airplane tires), which vastly outnumbers the amount of doors.
While we're on the topic of knobs, let's talk about door knobs. Per every door there is one wheel. However, I will admit that there may be some doors that exist in this world without a door knob, or that do not have circular door knobs. This does however provide an excellent boost for the wheels.
A door hinge is also considered a wheel. This means there is at least an additional two wheels per your average hinged door.
Buildings is a major talking point in this debate so that's where we'll go next. The average amount of doors per the average house is 14. I was unable to find the average amount of doors in a commercial/office building. However using the above evidence, the amount of wheels is almost triple the amount of functioning doors.
Within one building, you'd have hundreds of office chairs, each with six wheels. Tables, desks, applications often have wheels. Especially in places like hospitals, where almost everything is on wheels.
I'm not even on my main evidence yet.
I present to you: conveyor belts. Hundreds of wheels which help push along packages, cargo, or whatever else. Found in airports, warehouses, factories, etc. The longest conveyor belt, the
Bou Craa, which stretches 98 kilometers. That's a wheel or two right there.
And of course, the final piece of evidence...
...the shopping cart. Hundreds to thousands of shopping carts per store. Hundreds of thousands of stores worldwide. The statistics speak for themselves yall.