
Why You Can't See The Whole Wall
Why You Can't See The Whole Wall
There's this brick wall...and I see the whole wall is yellow, but I can't actually see the whole wall...
There's this brick wall...and I see the whole wall is yellow, but I can't actually see the whole wall...
March 22, 2026
March 22, 2026


The area of the wall that gets into my retina is too small.
Yeah, you move your eyes around a bit…but you know what you're actually doing?
You're anticipating the color of the wall.
You're anticipating that the whole wall is yellow.
Now, stop there and think:
But if I'm anticipating it, I'm actually not directly detecting it…which means (in some sense) I'm imagining it.
Here's another one:
You're running across the floor. Not just walking, you're running.
When you run the sensory motor signal is too slow for you to rely on it to guide you when you're running.
So what are you doing?
You're anticipating the floor, which means you're actually imagining it.
That’s really weird.
Now one more point, which is derived from the neural networks (deep learning…the thing that's in LLM’s).
What we discovered (way back when in 1996 by Geoffrey Hinton) was that how deep learning works is: Neural networks, they’re trying to detect a pattern in the world. They don't pick up the whole pattern. They take the data, they crunch it down to what's in common for all of the data, and then what they do is they generate a bunch of fantasies.
What the brain does is it fantasizes, and then most of those fantasies don't actually help you detect new patterns (so they get killed off) but some do, and so they stay…and you keep cycling.
That's how deep learning works.
You use the processes by which you generate behavior to recognize behavior in others.
You use the machinery by which you gesture to interpret the meaning of other people's gestures.
This is why you have a capacity for empathy and sympathy.
You use the very things that generate in order to recognize.
But do you understand what this means?
Empathy and sympathy are acts of imagination.
Acts of fantasizing.
And so now not only are you worried about “Am I just fantasizing the wall and the floor?” but “Am I fantasizing you when you nod your head and me taking that to mean that you’re tracking what I'm saying?”
But I want to stop here.
Look, science depends on this fact that a property of predictions is that they can be true.
What distinguishes predictions from other statements is that they can be true or false.
And this is why I don't like people saying, it's just a controlled hallucination:
Hallucination means it's not true, but when you run across the floor and you anticipated it being flat and it was true, and so you succeed…
So let's remember that immediately talking about hallucination is missing something here.
The area of the wall that gets into my retina is too small.
Yeah, you move your eyes around a bit…but you know what you're actually doing?
You're anticipating the color of the wall.
You're anticipating that the whole wall is yellow.
Now, stop there and think:
But if I'm anticipating it, I'm actually not directly detecting it…which means (in some sense) I'm imagining it.
Here's another one:
You're running across the floor. Not just walking, you're running.
When you run the sensory motor signal is too slow for you to rely on it to guide you when you're running.
So what are you doing?
You're anticipating the floor, which means you're actually imagining it.
That’s really weird.
Now one more point, which is derived from the neural networks (deep learning…the thing that's in LLM’s).
What we discovered (way back when in 1996 by Geoffrey Hinton) was that how deep learning works is: Neural networks, they’re trying to detect a pattern in the world. They don't pick up the whole pattern. They take the data, they crunch it down to what's in common for all of the data, and then what they do is they generate a bunch of fantasies.
What the brain does is it fantasizes, and then most of those fantasies don't actually help you detect new patterns (so they get killed off) but some do, and so they stay…and you keep cycling.
That's how deep learning works.
You use the processes by which you generate behavior to recognize behavior in others.
You use the machinery by which you gesture to interpret the meaning of other people's gestures.
This is why you have a capacity for empathy and sympathy.
You use the very things that generate in order to recognize.
But do you understand what this means?
Empathy and sympathy are acts of imagination.
Acts of fantasizing.
And so now not only are you worried about “Am I just fantasizing the wall and the floor?” but “Am I fantasizing you when you nod your head and me taking that to mean that you’re tracking what I'm saying?”
But I want to stop here.
Look, science depends on this fact that a property of predictions is that they can be true.
What distinguishes predictions from other statements is that they can be true or false.
And this is why I don't like people saying, it's just a controlled hallucination:
Hallucination means it's not true, but when you run across the floor and you anticipated it being flat and it was true, and so you succeed…
So let's remember that immediately talking about hallucination is missing something here.
John Vervaeke
John Vervaeke
Latest Course
Between East and West
An Introduction to Zen–Neoplatonism
Latest Course
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An Introduction to Zen–Neoplatonism
Latest Course
Between East and West
An Introduction to Zen–Neoplatonism
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What if I’m not familiar with philosophy or science?
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Do I need to have specific religious or scientific beliefs to benefit from the course?
Do I need to have specific religious or scientific beliefs to benefit from the course?
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Will this course challenge my current beliefs?
Will this course challenge my current beliefs?
Yes, the course is designed to provoke deep reflection. It introduces perspectives that will encourage you to question and reconsider long-held beliefs, fostering growth and deeper understanding.
I’m worried I won’t understand the material. Is it too advanced?
I’m worried I won’t understand the material. Is it too advanced?
Not at all! The course breaks down complex ideas into simple, easy-to-understand concepts, ensuring that whether you’re new to philosophy or well-versed, you’ll gain valuable insights.
What if I can’t attend live sessions or keep up with the pace?
What if I can’t attend live sessions or keep up with the pace?
All materials, including live session recordings, will be available to you anytime. You can go through the content at your own pace, fitting it around your schedule.
Is there any interaction with the instructor or other students?
Is there any interaction with the instructor or other students?
Yes! You will have the opportunity to engage with John and fellow students throughout the course.
Your questions.
Answered.
Not sure what to expect? These answers might help you feel more confident as you begin.
What if I’m not familiar with philosophy or science?
Yes! Our courses are designed to be accessible to both beginners and those with experience. John will hold a seminar after each lecture to answer any questions you might have.
What if I’m not familiar with philosophy or science?
Yes! Our courses are designed to be accessible to both beginners and those with experience. John will hold a seminar after each lecture to answer any questions you might have.
Do I need to have specific religious or scientific beliefs to benefit from the course?
Do I need to have specific religious or scientific beliefs to benefit from the course?
No. The courses are open to everyone, regardless of religious or scientific background. It’s about exploring diverse perspectives and finding a way to integrate them into your life.
Will this course challenge my current beliefs?
Will this course challenge my current beliefs?
Yes, the course is designed to provoke deep reflection. It introduces perspectives that will encourage you to question and reconsider long-held beliefs, fostering growth and deeper understanding.
I’m worried I won’t understand the material. Is it too advanced?
I’m worried I won’t understand the material. Is it too advanced?
Not at all! The course breaks down complex ideas into simple, easy-to-understand concepts, ensuring that whether you’re new to philosophy or well-versed, you’ll gain valuable insights.
What if I can’t attend live sessions or keep up with the pace?
What if I can’t attend live sessions or keep up with the pace?
All materials, including live session recordings, will be available to you anytime. You can go through the content at your own pace, fitting it around your schedule.
Is there any interaction with the instructor or other students?
Is there any interaction with the instructor or other students?
Yes! You will have the opportunity to engage with John and fellow students throughout the course.
Didn’t find your answer? Send us a message — we’ll respond with care and clarity.
Your questions.
Answered.
Not sure what to expect? These answers might help you feel more confident as you begin.
Didn’t find your answer? Send us a message — we’ll respond with care and clarity.
What if I’m not familiar with philosophy or science?
Yes! Our courses are designed to be accessible to both beginners and those with experience. John will hold a seminar after each lecture to answer any questions you might have.
What if I’m not familiar with philosophy or science?
Yes! Our courses are designed to be accessible to both beginners and those with experience. John will hold a seminar after each lecture to answer any questions you might have.
Do I need to have specific religious or scientific beliefs to benefit from the course?
Do I need to have specific religious or scientific beliefs to benefit from the course?
No. The courses are open to everyone, regardless of religious or scientific background. It’s about exploring diverse perspectives and finding a way to integrate them into your life.
Will this course challenge my current beliefs?
Will this course challenge my current beliefs?
Yes, the course is designed to provoke deep reflection. It introduces perspectives that will encourage you to question and reconsider long-held beliefs, fostering growth and deeper understanding.
I’m worried I won’t understand the material. Is it too advanced?
I’m worried I won’t understand the material. Is it too advanced?
Not at all! The course breaks down complex ideas into simple, easy-to-understand concepts, ensuring that whether you’re new to philosophy or well-versed, you’ll gain valuable insights.
What if I can’t attend live sessions or keep up with the pace?
What if I can’t attend live sessions or keep up with the pace?
All materials, including live session recordings, will be available to you anytime. You can go through the content at your own pace, fitting it around your schedule.
Is there any interaction with the instructor or other students?
Is there any interaction with the instructor or other students?
Yes! You will have the opportunity to engage with John and fellow students throughout the course.

