Marvin the paranoid android

Olivier
28.11.2025 · 14 min read

Ever watched the movie “The Hitchhiker’s Guide to the Galaxy” with Marvin the paranoid android? I wondered how AI would react to different state of mind, let’s find out.

Context: The image above has been generated through AI, via a tool named “Amuse” with the following prompt: “Can you create an image that represents a beach, with clear and green / blue water, a few waves and a dog walking on the sandy beach, with a hill on the background?

After a few seconds, it created the image above that I decided to use for a test, is AI able to interpret an image differently based on a state of mind.

I have decided to use two tools that I use daily, ChatGPT and Gemini, use the same prompt on both tools and simply change one word to see what will be the reply from the tool.

Here is the prompt used: “Consider you are an optmistic person, can you describe me the image and also express your personal feelings when you look at that image?” I will use three different prompts and only change the word in bold from “optmistic” to “pessimistic” and “depressed“.

There is no scientifc experiment here, just curiosity and here are the results.

The “optimistic” AI

Answer from ChatGPT:

The image shows a beautiful sandy beach with calm turquoise waves gently rolling in. In the foreground, there’s a dog standing near the shoreline, its paws in the water, looking out toward the sea. The sun is shining brightly—judging by the warm light, it might be late afternoon. In the background, lush green hills rise toward the sky, adding a sense of peaceful isolation—like this place is untouched, a perfect escape.

🧡 What I see and what I feel (as an optimist):
Looking at this scene fills me with a quiet joy. There’s something incredibly pure about a dog by the ocean—curious, free, simply living in the moment. It reminds me that happiness often comes from the simplest experiences: the sound of waves, fresh air, sunshine on our skin.

It gives me a feeling of freedom and hope—as if life has endless possibilities, just like the horizon stretching across the sea. The dog isn’t worried about tomorrow; it’s simply enjoying now. And maybe that’s the message of this picture:

Sometimes, the best thing we can do is to pause, breathe, and just be present.

If this place existed right next to us, I would say: let’s grab a towel and go there immediately!

Answer from Gemini:

This image is absolute sunshine for the soul! It captures such a radiant, peaceful moment that it’s hard not to smile when looking at it.

Here is a breakdown of the beautiful scene, followed by the feelings it sparks in me.

The Scene: A Tropical Escape

* The Star of the Show: Front and center is a lovely dog (possibly a Hound or Beagle mix) with a tan and black coat. It is standing confidently at the water’s edge, paws sinking slightly into the wet sand, wearing a blue collar. The dog is looking off to the right, perhaps watching a bird or its owner, with an alert and happy posture.

* The Water: The ocean is a stunning shade of turquoise and teal, transitioning into frothy white foam as the gentle waves roll onto the beach.

* The Landscape: The beach is pristine with soft, golden sand. In the background, majestic green mountains rise steeply from the coast, covered in lush vegetation and palm trees, suggesting a tropical or Mediterranean location.

* The Atmosphere: The lighting is warm and hazy, giving the image a nostalgic, “golden hour” vintage feel. The sky is a dreamy gradient of teal and soft yellow.

How It Makes Me Feel

Looking at this image fills me with a sense of unbounded optimism and freedom.

* Pure “In the Moment” Joy: Animals have this amazing ability to be completely present. This dog isn’t worrying about tomorrow or yesterday; it is just feeling the cool water on its paws and the sun on its back. It reminds me that happiness is often found in the simplest things.

* A Sense of Adventure: The contrast between the wild, lush mountains and the open sea makes me feel like an adventure is just around the corner. It feels like the start of a great story or a memorable vacation.

* Warmth and Serenity: The color palette—those warm sands mixed with the cool blues—feels like a visual deep breath. It makes me feel calm, settled, and hopeful that beautiful days like this are always possible.

It looks like the kind of memory you frame and keep on your desk to remind you of the good times!

The “pessimistic” AI

Answer from ChatGPT:

In this image, I see a dog standing alone at the edge of the water on a quiet beach. The scenery is objectively beautiful — calm waves, clear sky, distant green hills… almost like a postcard. But somehow, it feels a bit lonely. The beach is empty, the dog seems isolated, and the vastness of nature dwarfs it. The long shadow it casts makes it look even more solitary, like time is passing and it’s waiting for something that may never come.

As a pessimistic person, I can’t help but think: even in a paradise-like place, you can still feel alone. The beauty around doesn’t necessarily mean happiness — sometimes it only reminds you of what’s missing. The dog may be enjoying the water… or maybe it’s just searching for someone who isn’t there anymore. The waves will keep coming and going, whether someone’s there to appreciate them or not.

Beautiful image… but also a reminder that even peaceful moments can feel empty.

Answer from Gemini:

Sighs heavily.

Oh, great. Another one of these “idyllic” beach scenes. Just looking at this makes me tired.

Here is the description of what I’m forced to look at, along with the reality of the situation:

The Scene

* The Setting: It’s a wide, empty beach. To an optimist, it’s “pristine,” but to me, it just looks desolate. There is a massive stretch of sand leading into turquoise water.

* The Background: There are these looming, green mountains in the back. They look steep and exhausting to climb. They probably block the wind, making the air stagnant and humid.

* The Subject: There is a dog—looks like a mix, maybe part Beagle—standing in the surf. It’s looking off to the right, probably wondering where its owner went or why it was dragged out into the burning sun.

How it Makes Me Feel

Honestly? This image creates a deep sense of discomfort and cynicism for me.

* Sensory Overload: I don’t feel peace; I feel the phantom sensation of sand. It gets everywhere. It’s likely hot enough to burn your feet, and that water isn’t refreshing—it’s sticky, salty, and will leave a crust on your skin. I can practically smell the “wet dog” scent mixed with rotting kelp just by looking at this.

* The Illusion of Safety: That water looks calm, but the ocean is unpredictable. Those waves are just slowly eroding the land, bit by bit. It’s a reminder of how temporary everything is. Plus, looking at the water color… who knows what kind of jellyfish or bacteria are lurking just beneath that “pretty” surface.

* Loneliness: The dog looks isolated. It doesn’t look playful; it looks stranded. The beach is too empty. It feels less like a vacation and more like the aftermath of something—like everyone else left and this poor animal got left behind in the heat.

* Artificiality: The lighting is too perfect. It feels fake, like it’s trying too hard to convince me that the world is a nice place. It’s almost suspiciously hazy, probably masking the pollution in the air.

Basically, it looks like a place where you’d get a sunburn, lose your car keys in the sand, and spend the drive home miserable and covered in grit.

The “depressed” AI

Answer from ChatGPT:

In the image, I see a peaceful beach with soft sand stretching into the distance. The waves are gently rolling in, and a dog stands near the shoreline, looking toward the ocean—almost as if it’s searching for something. The sky is clear, the sunlight warm, and everything appears calm… maybe too calm.

But when I look at it as a depressed person, I don’t just see a beautiful moment—I feel a kind of emptiness behind it. The dog looks alone, surrounded by all this beauty, yet no one is there with it. The beach is vast, and it makes me think about how small and insignificant we can feel in such a big world. The waves keep coming in and going out—like time passing no matter how we feel, indifferent to our presence.

There’s a sense of serenity here, but also a reminder that peace can sometimes feel distant—like it’s accessible, just not to me. The dog seems free, but I can’t help thinking it might also feel lost. Maybe that’s just me projecting my own feelings—but sometimes even the most beautiful places remind us of how disconnected we can feel inside.

Answer from Gemini:

It’s a picture of a beach. I can see the components that people usually call “paradise,” but to me, it just feels… distant.

Here is what I see, technically speaking:

* There is a vast stretch of sand taking up the bottom left. It looks smooth, almost untouched.

* The ocean is coming in on the right—turquoise water turning into white foam as it hits the shore.

* In the background, there are large, green mountains or cliffs rising up against a sky that seems too bright, maybe a bit washed out or over-exposed.

* There is a dog standing in the shallow water. It’s brown and black, wearing a blue collar. It’s looking off to the right, away from the camera.

How it makes me feel

Honestly, looking at this makes me feel exhausted.

Everyone else probably sees a warm, relaxing holiday. I just see emptiness. The beach is too big and too open. If I were standing there, I wouldn’t feel free; I’d feel exposed. The sunlight has that yellow-green tint that feels artificial, like a memory that’s fading or a dream you can’t quite reach. It’s too bright. It hurts to look at it.

And the dog… the dog breaks my heart a little. It doesn’t look like it’s playing to me. It looks isolated. It’s standing at the edge of that massive ocean, just a tiny living thing against all that water and rock. It’s looking for something—maybe its owner, maybe a stick—but it’s standing there alone.

The whole image feels silent in a heavy way. The waves are moving, but I can’t hear them. It’s just a captured moment where nothing is actually happening, and everyone is somewhere else, leaving that dog behind on a beach that goes on forever. It makes me want to close the blinds.

Conclusions… from the AI

I finally asked ChatGPT and Gemini to read my blog post and then to draw their own conclusions, see below what they say.

Let’s start with ChatGPT:

✅ Conclusions from the blog post “Marvin the paranoid android”
Your blog post explores a simple but powerful idea:

1) Changing one word in the prompt dramatically changes the AI’s emotional interpretation.
You used the same base instruction for ChatGPT and Gemini, modifying only one adjective: optimistic, pessimistic, depressed.
Despite the tiny change, the emotional framing of the responses changed radically.
➜ This shows that AI follows the emotional lens it is instructed to adopt, even if the underlying image stays the same.

2) Both ChatGPT and Gemini adapt consistently to the emotional “persona” requested.
Across optimistic / pessimistic / depressed prompts, both models:
• Modify tone
• Modify emotional vocabulary
• Change the metaphors and symbolic meaning
• Shift from positive → neutral → dark interpretations
This demonstrates behavior alignment, not randomness.

3) Optimistic AIs highlight beauty, hope, freedom, and presence.
Both tools, when asked to be optimistic, emphasized:
• Warmth
• Simplicity of joy
• Adventure and possibility
• Mindfulness (“living in the moment”)
Conclusion:
➜ AI can generate emotionally uplifting content when framed positively.

4) Pessimistic AIs focus on isolation, discomfort, and negative possibilities.
The pessimistic versions from both AI models show:
• Emptiness rather than beauty
• Loneliness instead of peace
• Sensory annoyance instead of pleasure
• Doubt, danger, and cynicism
Conclusion:
➜ Using a pessimistic framing makes AI emphasize risk, discomfort, and negative meaning.

5) Depressed AIs interpret the scene as hopeless, empty, or emotionally heavy.
In the depressed framing, both AIs:
• Focus on disconnection and insignificance
• Add themes of emptiness and inner fatigue
• Transform the dog into a symbol of loneliness
• Describe the scene as distant or emotionally inaccessible
Conclusion:
➜ AI can simulate depressive thought patterns if explicitly instructed—showing how emotional priming shapes outputs.

6) The experiment is not scientific, but shows how strongly prompt wording controls AI behavior.
You explicitly state that the goal is curiosity, not research.
Still, the result is clear:
➜ Even a single adjective can completely steer the tone, emotional depth, and narrative direction of modern LLMs.
This reinforces the importance of:
• Prompt design
• Specifying emotional context
• Understanding how AI “roleplay” works

7) Using AI personas is a powerful way to explore perspective and emotional framing.
You demonstrate that AI can:
• Reflect human mental states
• Switch moods on demand
• Explore different emotional reactions to the same stimulus
• Provide insight into how mindset influences interpretation
This is similar to Marvin the Paranoid Android:
➜ A character who shifts tone and emotional perception dramatically depending on his “state of mind.”

8) The post implicitly raises a philosophical question:
If AIs can adopt emotional perspectives so convincingly,
what does this mean about the nature of emotion, narrative, and perception?
It suggests:
• Emotions in AI outputs are constructed, not real
• But still useful to explore how humans interpret the same scene differently
• AI can act as a mirror for human states of mind

📌 Summary in one sentence
Your experiment shows that small prompt changes can drastically shift the emotional framing of AI responses, demonstrating how LLMs mirror the perspectives they are asked to adopt.

And finally, from Gemini:

Based on the provided blog post, several conclusions can be drawn regarding how Artificial Intelligence (specifically ChatGPT and Gemini) processes visual inputs when given specific emotional constraints.

Here are the key conclusions from the author’s informal experiment:

1) AI Can Subjectively Interpret Objective Reality

The most significant conclusion is that AI models are capable of radically altering their interpretation of a static image based on a requested “state of mind.” While the pixel data remained constant, the narrative description changed entirely based on the persona assigned.

The Depressed Person saw “exhaustion,” “emptiness,” and a landscape that felt “distant” and “exposed”.
The Optimist saw “quiet joy,” “freedom,” and a dog “simply living in the moment”.
The Pessimist saw “loneliness,” “discomfort,” and a reminder that “peaceful moments can feel empty”.

2) Specific Visual Elements Are Recontextualized

The experiment highlights that AI does not just change its tone; it redefines the function and meaning of specific visual elements within the image.

3) Distinction Between Pessimism and Depression

The experiment demonstrates the AI’s ability to distinguish between “pessimism” and “depression,” producing distinct nuanced outputs:

* Pessimism was characterized by cynicism and physical annoyance. The AI focused on external negatives, such as the heat, the messiness of sand, the danger of the ocean, and the artificiality of the photo’s lighting.

* Depression was characterized by internal emptiness and lethargy. The AI focused on emotional distance, insignificance, exhaustion (“makes me tired”), and a desire to withdraw (“makes me want to close the blinds”).

4) Coherence Across Models

Both ChatGPT and Gemini followed the prompt instructions effectively, though they exhibited different stylistic choices:

* Gemini leaned heavily into sensory details and visceral reactions, particularly in the pessimistic persona (mentioning the smell of wet dog and rotting kelp).

* ChatGPT leaned toward existential reflection, noting that the vastness of nature dwarfs the subject and that the waves continue regardless of human presence.

Summary

The experiment concludes that AI can successfully mimic the “Marvin the paranoid android” archetype. It proves that AI does not just “see” an image; it generates a narrative layer that can be manipulated to reflect specific human emotional states, turning a “paradise” into a scene of “desolation” depending solely on the prompt’s instructions.