
Happy Halloween, everyone!

Happy Halloween, everyone!
The mission is world-critical, so like a cockpit, the two who are ultimately in control are kept secure. The control room is accessible (to mere humans, anyway) only through a vault door with an armed guard. Hadley and Sitterson must present IDs to the guard before he grants them access.
Truman, the guard, takes and swipes their cards through a groove in a hand-held device. We are not shown what is on the tiny screen, but we do hear the device’s quick chirps to confirm the positive identity. That sound means that Truman’s eyes aren’t tied to the screen. He can listen for confirmation and monitor the people in front of him for any sign of nervousness or subterfuge.
The room itself tells a rich story through its interfaces alone. The wooden panels at the back access Bronze Age technology with its wooden-handled gears, glass bowls, and mechanical devices that smash vials of blood. The massive panel at which they sit is full of Space Age pushbuttons, rheostats, and levers. On the walls behind them are banks of CRT screens. These are augmented with Digital Age, massive, flat panel displays and touch panel screens within easy reach on the console. This is a system that has grown and evolved for eons, with layers of technology that add up to a tangled but functional means of surveillance and control.
In order for Control to do their job, they have to keep tabs on the victims at all times, even long before the event: Are the sacrifices conforming to archetype? Do they have a reason to head to the cabin?
To these ends, there are field agents in the world reporting back by earpiece, and everything about the cabin is wired for video and audio: The rooms, the surrounding woods, even the nearby lake.
Once the ritual sacrifice begins, they have to keep an even tighter surveillance: Are they behaving according to trope? Do they realize the dark truth? Is the Virgin suffering but safe? A lot of the technology seen in the control room is dedicated to this core function of monitoring.
There are huge screens at the front of the room. There are manual controls for these screens on the big panel. There is an array of CRTs on the far right.
The small digital screens can display anything, but a mode we often see is a split in quarters, showing four cameras in the area of the stage. For example, all the cameras fixed on the rooms are on one screen. This provides a very useful peripheral signal in Sitterson and Hadley’s visual field. As they monitor the scenario, motion will catch their eyes. If that motion is not on a monitor they expect it to be, they can check what’s happening quickly by turning their head and fixating. This helps keep them tightly attuned to what’s happening in the different areas on “stage.”
For internal security, the entire complex is also wired for video, including the holding cages for the nightmare monsters.

One screen that kind of confuses us appears to be biometrics of the victims. Are the victims implanted with devices for measuring such things, or are sophisticated non-invasive environmental sensors involved? Regardless of the mechanisms, if Control has access to vital signs, how are they mistaken about Marty’s death? We only get a short glance at the screen, so maybe it’s not vital signs, but simple, static biometrics like height, and weight, even though the radiograph diagram suggests more.
Sitterson and Hadley are managing a huge production. It involves departments as broad ranging as chemistry, maintenance, and demolitions. To coordinate and troubleshoot during the ritual, two other communications options are available beyond the monitors; land phone lines and direct-connection, push-to-talk microphones.

The key system in The Cabin in the Woods is a public service, and all technological components can be understood as part of this service. It is, of course, not a typical consumer service for several reasons. Like the CIA, FBI, and CDC, the people who most benefit from this service—humanity at large—are aware of it barely, if at all. These protective services only work by forestalling a negative event like a terrorist action or plague. Unlike these real-world threats, if Control fails in their duties, there is no crisis management as a next step. There’s only the world ending. Additionally, it is not typical in that it is an ancient service that has built itself up over ages around a mystical core.
So who are the users of the service? The victims are not. They are intentionally kept in the dark, and it is seen as a crisis when Marty learns the truth.
Given that interaction design requires awareness of the service in question, as well as inputs and outputs to steer variables towards a goal, it stands that the organization in the complex are the primary users. Even more particularly it is Sitterson and Hadley, the two “stage managers” in charge of the control room for the event, who are the real users. Understanding their goals we can begin an analysis. Fittingly, it’s complex:

This operation is not the only one operating at the same time. There are at least six other operations, working with their particular archetypes and rituals around the world: Berlin, Kyoto, Rangoon, Stockholm, Buenos Aires, and Madrid.
To monitor these other scenarios, there are two banks of CRT monitors high up on the back wall, each monitor dedicated to a different scenario. Notably, these are out of the stage manager’s line of attention when their focus is on their own.

The digital screens on the main console are much more malleable, however, and can be switched to display any of the analog video feeds if any special attention needs to be paid to it.
The amount of information that the stage managers need about any particular scenario is simple: What’s the current state of an ongoing scenario, and whether it has succeeded or failed for a concluded one. We don’t see any scenario succeed in this movie, so we can’t evaluate that output signal. Instead, they all fail. When they fail, a final image is displayed on the CRT with a blinking red legend “FAIL” superimposed across it, so it’s clear when you look at the screen (and catch it in the “on” part of the blink) what it’s status is.
One critique of this simple pass-fail signal is that it is an important signal that might be entirely missed, if the stage managers’ attentions were riveted forward, to problems in their own scenario. Another design option would be to alert Sitterson and Hadley to the moment of change with a signal in their peripheral attention, like a flash or a brief buzz. But signaling a change of state might not be enough. The new state, i.e. 4 of 7 failed, ought to be persistent in their field of vision as they continue their work, if the signal is considered an important motivator.
The design of alternate, persistent signals depend on rules we do not have access to. Are more successful scenarios somehow better? Or is it a simple OR-chain, with just one success meaning success overall? Presuming it’s the latter, strips of lighting around the big screens could become increasingly bright red, for instance, or a seven-sided figure mounted around the control room could have wedges turn red when those scenarios failed. Such environmental signals would allow the information to be glanceable, and remind the stage managers of the increasing importance of their own scenario. These signals could turn green at the first success as well, letting them know that the pressure is off and that what remains of their own scenario is to be run as a drill.
There is a Prisoner’s Dilemma argument to be made that stage managers should not have the information about the other scenarios at all, in order to keep each operation running at peak efficiency, but this would not have served the narrative as well.
Release Date: 15 April 2012, USA

Five teenagers take a road trip on a long weekend to spend time at a cabin in the woods, only to stumble upon creepy and mysterious objects in the basement. Reading Latin found in an old diary, they unwittingly reanimate a family of pain-worshipping zombies, who immediately begin to assault and kill the teens one by one. Marty, one of the teens, escapes death and leads the only other survivor, Dana, into a hidden underground complex he has found. There they learn that their road trip experience has been engineered behind the scenes—and that they have been constantly and subtly manipulated—by an unnamed organization that annually perform this rite, causing archetypal victims to suffer and act as sacrifices that keep ancient evil beings, called the Old Ones, asleep. By releasing containment mechanisms that cage nightmarish monsters, Dana and Marty create gory chaos, allowing them to make their way to the heart of the complex, where they must choose to die for the world, or with it.
IMDB: https://www.imdb.com/title/tt1259521/Currently streaming on: ![]()
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Forbidden Planet is an influential film not just because of its positive audience reaction and later cult success, but also because Gene Roddenberry has stated that it deeply influenced his massive science fiction property Star Trek, in look, general plot structure, and even some of the same effects.
The film is also notable for the introduction of Robbie the Robot, an anthropomorphic robot who was such a hit (and so expensive for MGM to create) that he warranted a follow-up movie all to himself, and inspired the creator Robert Kinoshita to make a similar robot for the long-running family-friendly serial Lost in Space.
But as much as we adore the nostalgic themes and effects, and as much as we recognize the influence of the film, our review must be of its interfaces, and for that it does not ultimately fare well.
The Krell technology is meant to be advanced beyond our understanding of physics and technology, so the film shouldn’t be dinged for that. Robbie is somewhat problematic (how, again, does he hold and fire the gun?) but as a result of Krell enhancements, we can forgive a bit of that, too. The Terran technology in contrast scores higher, even with the invisible “force field” version of an electric fence.
How well do the interfaces inform the narrative of the story?
For a reimagining of Shakespeare’s The Tempest, the interfaces could have easily been tacked on, unrelated to the central plot. But for the most part the interfaces are deeply integrated in the story, telling a tale of a man’s toying with technology that is terrifyingly advanced and ultimately uncontrollable. The film’s indulgence in some extraneous (and ultimately poorly thought out) “gee-whiz, what’ll they think of next?” moments are the main reason it does not warrant full marks.
How well do the interfaces equip the characters to achieve their goals?
Between demure self-destruct mechanisms, death-prone trash bins, and critically unhelpful astrogator tools, the interfaces in Forbidden Planet are gory distaster scenes waiting to happen. There’s little that a designer would want to pull from these for their own work in the real world. Unless, perhaps, you’re Krell.
IMDB: https://www.imdb.com/title/tt0049223/Currently streaming on: ![]()

When Morbius has taken a mortal wound from his monster and destroyed his evil self, he realizes that mankind is not ready for the power available to him through the Krell technology. Without explaining what he’s doing, Morbius instructs Adams to turn “that disc”. Adams mindlessly obeys, and a plunger emerges from the floor near him.
Morbius commands Adams, “The switch, throw it.” Again, Adams does as he’s told, and the plunger clicks into place as a red ring (the same red ring below the educator lever) illuminates. Then, and only then, Morbius explains that, “In 24 hours you must be 100 million miles out in space. The Krell furnaces’ chain reaction… they cannot be reversed.” You think that with that kind of finality, he might have bothered to explain what was going to happen, or inquire whether the crew could make it out that far in that amount of time, but you know, science knows best.
Adding insult to injury, the complete warning system for this massive, solar-system-sized explosion consists of, in total, a silently pulsing red ring around the base of a plunger located in the heart of a hidden underground city behind a series of impenetrable doors sealed with combination locks. There is no klaxon, no lights seen elsewhere to indicate that your star system is about to go boom. I guess if you didn’t know, you didn’t really need to know.
The plastic educator has a side effect that serves as the mystery at the dark heart of the film. Use of the device gives rise to “monsters from the id,” which manifest while the user is asleep and attack the sleeper’s enemies. Our first clue to the origins of the monster appear when Morbius explains the Krell gauges.
“Gauges line the curving walls of the lab in stacks of two,” Morbius explains, “Their calibrations appear to indicate that they are set in decimal series, each division recording exactly ten times as many amperes as the one preceding it. Ten times ten, times ten, times ten, times ten, times ten, on and on and on, row after row, gauge after gauge.”
He turns on the encyclopedia and a small bit of light appears on the first gauge. He turns on the plastic educator and the gauge shows a little more.
This explanation helps to set up the awesome power of Morbius’ monster when we see Morbius sleeping in the lab, and sixteen of the gauges are lit up. (It’s 10^16 times more powerful than an encyclopedia.) We know the (then) unbelievable technologies showed the barest sliver of a reading, and here they are blasting power to…somewhere.
The connection is severed as Morbius awakens, and within seconds the monster fades and the gauges behind him dim one by one.
This dramatic link is underscored when the monster has come into the underground city to destroy Morbius, Adams, and Alta. As Adams wrestles Morbius down, we hear the angry pounding of the monster against the vault like doors, and see the gauges glowing and fluctuating wildly in the background.
Dr. Morbius introduces the Krell plastic educator, saying, “As far as I can make out, they used it to condition and test their young, in much the same way as we once employed finger painting among our kindergarten children.”
The device is a station at which the learner sits. There is a large dashboard before him, in turn before a space enclosed in a tetrahedral encasement of plastic. To his right is a large column made of plastic with red and yellow graduations running up the side. Inside the column is a strange shape like a lathed accordion, terminating in a pulsing ring that indicates a level against the graduations. An arced panel hangs from the ceiling with other printed graduations with lines of light above and below. Blue neon squiggles blink randomly along the walls.
To activate the station, the learner grasps a pair of curved metal arms, which are connected at a hinged base and tipped with crystal orbs. He leans forward, rests his forehead on a third arm, and pulls the pair of arms to rest on his temples. He turns a pair of dials on the dashboard before him, and the crystal orbs on all three arms glow, indicating that the headset is operational.
The device’s immediate result is that the accordion shape inside the column rises such that the lit ring indicates the intelligence of the user. (To Adams’ and Doc’s dismay, their readings are much lower than Morbius’.)
The primary function of the device is for the user to make a thought of theirs manifest in the tetrahedral space. The user concentrates on the thing, and then pulls a lever at the base of the headset. A red ring at the base of the headset illuminates, and a material appears above a pedestal at the base of the tetrahedron. By concentrating, the user shapes this material into the desired thing. Morbius shapes it into an image of Alta. The image is a scaled, translucent, volumetric display of Alta, which moves and smiles just as she would.
To stop using the device and shut down the projection, the learner simply lifts the lever and removes the headset from contact, and the orbs, the red ring, and the volumetric projection all fade within moments.
Turning the dashboard off requires a user to turn two free-spinning dials that sit to each side of the headset inwards. The lights of the dashboard fade.
Morbius is the inheritor of a massive underground complex of technology once belonging to a race known as the Krell. As Morbius explains, “In times long past, this planet was the home of a mighty and noble race of beings which called themselves the Krell .”
“Ethically as well as technologically, they were a million years ahead of humankind; for in unlocking the mysteries of nature they had conquered even their baser selves seemingly on the threshold of some supreme accomplishment which was to have crowned their entire history, this all but divine race perished in a single night.
“In the centuries since that unexplained catastrophe even their cloud-piercing towers of glass and porcelain and adamantine steel have crumbled back into the soil of Altair, and nothing—absolutely nothing—remains above ground.”
Despite this advancement, unless we ascribe to the Krell some sort of extra sensory perception and control, much of the technology we see has serious design flaws.
The first piece of technology is a Krell recorded-music player, which Morbius keeps on the desk in his study. The small cylindrical device stands upright, bulging slighty around its middle. It is made of a gray metal, with a translucent pink band just below the middle. A hollow button sits on top.
The cylinder rests in a clear plastic base, with small, identical metal slugs sitting upright in recessions evenly spaced around it. To initiate music playback, Morbius picks one of the slugs and inserts it into the hollow of the button. He then depresses the momentary button once. The pink translucent band illuminates, and music begins to flow from unseen speakers around the office.
Modern audiences have a good deal of experience with music players, and so the device raises a great many questions. How does a user know which slug relates to what music? The slugs all look the same so this seems difficult at best. How does a user eject the slug? If by upending the device, one hopes that the cylinder comes free from the base easily, or the other slugs will all fall out as well. It must have impressed audiences to see music contained in such small containers, but otherwise the device is more attractive than usable.
Many Krell doors are protected by a combination lock. The mechanism stands high enough that Morbius can easily reach out and operate it. Its large circular face has four white triangles printed on its surface at the cardinal points, and other geometric red and yellow markings around the remainder. A four-spoke handle is anchored to a swivel joint at the center of the face. To unlock the door, a user twists the handle such that one of its spokes lines up with the north point, and then angles the handle to touch the spoke to the triangle there, before returning the handle to a neutral angle and twisting to the next position in the combination. When the sequence is complete, the triangles, the tips of the spokes, and a large ring around the face all light up and blink as the two-plane aperture doors slide open.
Even Walter Pigeon has trouble making sense of this awkward device. There appear to be no snap-to affordances for the neutral angle of the handle or the cardinal orientations, leaving the user unsure if each step in the sequence has been received correctly. Additionally, if the combination consists of particular spokes at this one point, why are the spokes undifferentiated? If the combination consists of pointing to different triangles, why are there four spokes instead of one? Is familiarity with some subtle cue part of the security measures?
All of Krell wisdom and knowledge is contained in a device that Morbius shows to Adams and Doc. It consists of an underlit scroll of material sliding beneath a rectangular hole cut in the surface of a table. To illuminate it, Morbius turns one of the two ridged green dials located to the left of the screen about 45 degrees clockwise. To move the scroll, Morbius turns the other green dial clockwise as well.
Why is the least frequently used dial, i.e. the power button, closer than the more frequently used button, i.e. the scroll wheel? This requires the reader to be stretched awkwardly. Why is the on-off dial free spinning? There appear to be only two states: lit and unlit. The dial should have two states as well. If the content of the pages is discretely chunked into pages, it would also argue for a click-stop rather than free-spinning dial as well, but we do not get a good look at the scroll contents. One might also question the value of a scroll as the organizing method for a vast body of information, since related bits of information may be distractingly far apart.