Black & Decker Hydrator


Lorraine prepares the family a pizza using a hydrator. She opens a sealed foil package, branded “Pizza Hut,” and removes a tiny puck of a pizza, placing it in the center of a large pizza tray. She inserts the tray into a “hydrator” oven and closes the hinged front door. A small green light illuminates on its panel. She puts her mouth close to the device and instructs it to, “Hydrate level 4, please.” A red light illuminates as a bubbling sound is heard for a few seconds. Then a timer bell rings, and both lights extinguish. Lorraine removes a full-sized and fully-cooked pizza from the oven.

It could be improved by not having her have to remember and enter the level of hydration. There might be an argument that this helps the hydrator feel like they’re doing enough effort, like the legendary Betty Crocker egg story. While snopes tells us that the usual version of this is poppycock, but also references Ernest Dichter’s research in which yes, the first generation of homemakers using instant cake mixes felt that a preparation that was too easy was too indulgent. So, perhaps the hydrator is first generation, and later generations will be able to detect the hydration needed from the packaging.  


Biff(2015) pays for his taxi ride to the McFly household with his thumbprint. When the ride ends, a synthesized voice gives the price “one-seven-four-point-five-zero.” The taxi driver presents him with a book-sized device with the price at the top on a red 7-segment LED display. Biff presses his thumb on a reader at the bottom that glows white as it scans. When the payment is verified, the thumbprint reader and the price go dark as a sound plays like a register.


For due diligence, let me restate: multimodal biometric or multifactor authentication is more secure.


To get Jennifer into her home, the police take her to the front door of her home. They place her thumb on a small circular reader by the door. Radial LEDs circle underneath her thumb for a moment as it reads. Then a red light above the reader turns off and a green light turns on. The door unlocks and a synthesized voice says, “Welcome home, Jennifer!”


Similarly to the Thumbdentity, a multifactor authentication would be much more secure. The McFly family is struggling, so you might expect them to have substandard technology, but that the police are using something similar casts that in doubt.

Night Vision Goggles


Genarro: “Are they heavy?”
Excited Kid: “Yeah!”
Genarro: “Then they’re expensive, put them back”
Excited Kid: [nope]

The Night Vision Goggles are large binoculars that are sized to fit on an adult head.  They are stored in a padded case in the Tour Jeep’s trunk.  When activated, a single red light illuminated in the “forehead” of the device, and four green lights appear on the rim of each lens. The green lights rotate around the lens as the user zooms the binoculars in and out. On a styling point, the goggles are painted in a very traditional and very adorable green and yellow striped dinosaur pattern.

Tim holds the goggles up as he plays with them, and it looks like they are too large for his head (although we don’t see him adjust the head support at all, so he might not have known they were adjustable).  He adjusts the zoom using two hidden controls—one on each side.  It isn’t obvious how these work. It could be that…

  • There are no controls, and it automatically focuses on the thing in the center of the view or on the thing moving.
  • One side zooms in, and the other zooms out.
  • Both controls have a zoom in/zoom out ability.
  • Each side control powers its own lens.
  • Admittedly, the last option is the least likely.

Unfortunately the movie just doesn’t give us enough information, leaving it as an exercise for us to consider.

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Ghost trap

Once ghosts are bound by the streams from the Proton Packs, they can be trapped by a special trap. It has two parts: The trap itself, that is roughly the size of a toaster, and the foot pedal activation switch, which connects to the trap box by a long black cord.


To open the trap, a ghostbuster simple steps on the foot pedal. For a second the trap sparks with some unknown energy, and opens to reveal a supernatural light within. Once open, the bound ghost can be manipulated down towards the trap.

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Proton Pack


The Ghostbusters wear “unlicensed particle accelerators” to shoot a stream of energy from an attached gun. Usefully, this positively-charged stream of energy can bind ghosts. The Pack is the size of a large camper’s backpack and is worn like one. The Proton pack must be turned on and warmed up before use. Its switch, oddly, is on the back, where the user cannot get to it themselves.

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Compartment 21

After the Communications Tower is knocked off, Barcalow, looking out the viewport, somehow knows exactly where the damage to the ship has occured. This is a little like Captain Edward Smith looking out over the bow of the RMS Titanic and smelling which compartment was ripped open by the iceburg, but we must accept the givens of the scene. Barcalow turns to Ibanez and tells her to “Close compartment 21!” She turns to her left, reaches out, and presses a green maintained-contact button labeled ENABLE. This button is right next to a similar-but-black button also labeled ENABLE. As she presses the button, a nearby green LED flashes for a total of 4 frames, or 0.16 second.


She looks up at some unseen interface, and, pleased with what she sees there, begins to relax, the crisis passed.


A weary analysis

Let’s presume he is looking at some useful but out-of-character-for-this-bridge display, and that it does help him identify that yes, out of all the compartments that might have been the one they heard damaged, it is the 21st that needs closing.

  1. Why does he have the information but she have the control? Time is wasted (and air—not to mention lives, people—is lost) in the time it takes him to instruct and her to react.
  2. How did she find the right button when it’s labeled exactly the same way as adjacent button? Did she have to memorize the positions of all of them? Or the color? (How many compartments and therefore colors would that mean she would need to memorize?) Wouldn’t a label reading, say, “21” have been more useful in this regard?
  3. What good does an LED do to flash so quickly? Certainly, she would want to know that the instruction was received, but it’s a very fast signal. It’s easy to miss. Shouldn’t it have stayed on to indicate not the moment of contact, but the state?
  4. Why was this a maintained-contact button? Those look very similar when pressed or depressed. A toggle switch would display its state immediately, and would permit flipping a lot of them quickly, in case a lot of compartments need sealing.
  5. Why is there some second place she must look to verify the results of her action, that is a completely separate place from Barcalow (remember he looks forward, she looks up). Sure, maybe redundancy. Sure, maybe he’s looking at data and she’s looking at video feeds, but wouldn’t it be better if they were looking at the same thing?


I know it’s a very quick interaction. And props to the scriptwriters for thinking about leaking air in space. But this entire interaction needs rethinking.

In case of evasion, BREAK GLASS

  • You sent for me, sir?
  • Yes I did…I did not, however, invite you to sit, Lieutenant.
  • Sorry, sir.
  • Are you aware that we have just lost contact with the Rodger Young?
  • Everyone’s talking about it, sir.
  • Well, I have the video feed from the bridge here. I understand you are the designer of the emergency evasion panel, and the footage raises some fundamental questions about that design. Watch with me now, Lieutenant.
  • StarshipTroopers-BreakGlass-01

  • As you can see, immediately after Captain Deladier issues her order, your panel slides up from a recess in the dash.
  • (He pauses the video)
  • (After a silence)
  • Is there a question, sir?
  • Why is this panel recessed?
  • To prevent accidental activation, sir.
  • But it’s an emergency panel. For crisis situations. It takes two incredibly valuable seconds for this thing to dramatically rise up. What else do you imagine that pilot might have done with those extra two seconds?
  • I…
  • Don’t answer that. It’s rhetorical. Next I need you to not explain this layout. Why aren’t the buttons labeled? What does that second one do, and why does it look exactly the same as the emergency evasion button? Are you deliberately trying to confuse our pilots?
  • (Stares.)
  • OK, now I actually do want you to explain something.
  • (Resuming the video)
  • Why did you cover the panel in glass? Ibanez—and I can’t believe I’m saying this—punches it.
  • The glass is there also to prevent accidental activation, sir.
  • But you already covered that with the time-wasting recession. You know she’s likely to have tendon, nerve, and arterial damage now, right? And she’s a pilot, Lieutenant. Without her hands, she’s almost useless to us. And now, in addition to having a giant, peanut-shaped boulder in their face, they’ve got a bridge full of loose glass shards scattered about. Let’s hope the artificial gravity lasts long enough for them to get a broom, or they’re going to be in for some floating laceration ballet.
  • That would be unfortunate, sir.
  • Damn right. Now honestly I might be of a mind to simply court martial you and treat you to some good old Federation-approved public flogging for Failure to Design. But today may be your lucky day. I believe your elegant design decisions were exacerbated by the pilot’s being something of a drama queen.
  • The glass was designed to be lifted off, sir.
  • (Resuming the video)
  • Fair enough. My last question…
  • StarshipTroopers-BreakGlass-08


  • Did I see correctly that all of the lights underneath the engine boost light up all at once? The ones labeled POWER ON? AUTO HOME? NOSE RAM? The ones that don’t have anything to do with the engine boost?
  • And…and the adjacent green LED, sir.
  • All at once.
  • Sir.
  • (Sighs)
  • Well, as you might not be able to imagine, we’re moving you. After you collect your belongings you are to report to the Reassignment Office.
  • (He scrubs back and forth over the drone video of the communication tower ripping off.)
  • scrubbing

  • Out of curiosity, WOODS, what was the last thing you designed as part of my department?
  • The Buenos Aires Missile Defense System, sir.
  • I’ll look into it. Dismissed.

The Gatekeeper


After the security ‘bot brings Eve across the ship (with Wall-e in tow), he arrives at the gatekeeper to the bridge. The Gatekeeper has the job of entering information about ‘bots, or activating and deactivating systems (labeled with “1”s and “0”s) into a pedestal keyboard with two small manipulator arms. It’s mounted on a large, suspended shaft, and once it sees the security ‘bot and confirms his clearance, it lets the ‘bot and the pallet through by clicking another, specific button on the keyboard.

The Gatekeeper is large. Larger than most of the other robots we see on the Axiom. It’s casing is a white shell around an inner hardware. This casing looks like it’s meant to protect or shield the internal components from light impacts or basic problems like dust. From the looks of the inner housing, the Gatekeeper should be able to move its ‘head’ up and down to point its eye in different directions, but while Wall-e and the security ‘bot are in the room, we only ever see it rotating around its suspension pole and using the glowing pinpoint in its red eye to track the objects its paying attention to.

When it lets the sled through, it sees Wall-e on the back of the sled, who waves to the Gatekeeper. In response, the Gatekeeper waves back with its jointed manipulator arm. After waving, the Gatekeeper looks at its arm. It looks surprised at the arm movement, as if it hadn’t considered the ability to use those actuators before. There is a pause that gives the distinct impression that the Gatekeeper is thinking hard about this new ability, then we see it waving the arm a couple more times to itself to confirm its new abilities.


The Gatekeeper seems to exist solely to enter information into that pedestal. From what we can see, it doesn’t move and likely (considering the rest of the ship) has been there since the Axiom’s construction. We don’t see any other actions from the pedestal keys, but considering that one of them opens a door temporarily, it’s possible that the other buttons have some other, more permanent functions like deactivating the door security completely, or allowing a non-authorized ‘bot (or even a human) into the space.

An unutilized sentience

The robot is a sentient being, with a tedious and repetitive job, who doesn’t even know he can wave his arm until Wall-e introduces the Gatekeeper to the concept. This fits with the other technology on board the Axiom, with intelligence lacking any correlation to the robot’s function. Thankfully for the robot, he (she?) doesn’t realize their lack of a larger world until that moment.

So what’s the pedestal for?

It still leaves open the question of what the pedestal controls actually do. If they’re all connected to security doors throughout the ship, then the Gatekeeper would have to be tied into the ship’s systems somehow to see who was entering or leaving each secure area.

The pedestal itself acts as a two-stage authentication system. The Gatekeeper has a powerful sentience, and must decide if the people or robots in front of it are allowed to enter the room or rooms it guards. Then, after that decision, it must make a physical action to unlock the door to enter the secure area. This implies a high level of security, which feels appropriate given that the elevator accesses the bridge of the Axiom.

Since we’ve seen the robots have different vision modes, and improvements based on their function, it’s likely that the Gatekeeper can see more into the pedestal interface than the audience can, possibly including which doors each key links to. If not, then as a computer it would have perfect recall on what each button was for. This does not afford a human presence stepping in to take control in case the Gatekeeper has issues (like the robots seen soon after this in the ‘medbay’). But, considering Buy-N-Large’s desire to leave humans out of the loop at each possible point, this seems like a reasonable design direction for the company to take if they wanted to continue that trend.

It’s possible that the pedestal was intended for a human security guard that was replaced after the first generation of spacefarers retired. Another possibility is that Buy-N-Large wanted an obvious sign of security to comfort passengers.

What’s missing?

We learn after this scene that the security ‘bot is Otto’s ‘muscle’ and affords some protection. Given that the Security ‘bot and others might be needed at random times, it feels like he would want a way to gain access to the bridge in an emergency. Something like an integrated biometric scanner on the door that could be manually activated (eye scanner, palm scanner, RFID tags, etc.), or even a physical key device on the door that only someone like the Captain or trusted security officers would be given. Though that assumes there is more than one entrance to the bridge.

This is a great showcase system for tours and commercials of an all-access luxury hotel and lifeboat. It looks impressive, and the Gatekeeper would be an effective way to make sure only people who are really supposed to get into the bridge are allowed past the barriers. But, Buy-N-Large seems to have gone too far in their quest for intelligent robots and has created something that could be easily replaced by a simpler, hard-wired security system.