SlideShare a Scribd company logo
1 of 21
A casual stroll through a lunatic asylum shows that certainty
about one's beliefs does not prove anything
- Nietzsche
In eastern philosophy, we are viewed as trapped in Maya
[illusion, deception]. The entrapment results from the tacit but
bogus premise of perception: I see things as they really are.
We do not see the
world as it really is.
Everything we hear is
an opinion, not a fact.
Everything we see is a
perspective, not the truth.
- Marcus Aurelius
Believe Me!
People who claim to know the
universal truth have been
taken in by an illusion, or
worse: They are intentionally
lying.
Even though you may feel
certain of your interpretation
of the truth, the truth may
appear different from a
different perspective
Seeing is Believing?
[There are no black dots]
People act counter to their
interests because they are
taken in by the Soul Illusion -
the tacit acceptance of the
false premise that your
experience of reality is the
same as reality.
I will make the case against certainty to two audiences: Viewing the optical illusions will give you the
opportunity to experience the evidence directly that your perception is a creation of your nervous system, not
an accurate and complete depiction of the external world.
But I’ll start with the more conventional case designed for the more conventional audience. The argument is
directed to your rational mind; the kind of argument that may be made in a college psychology course.
In eastern philosophy we are viewed as
trapped in "Maya.” The entrapment
results from the tacit but bogus
premise of perception: I see things as
they really are. In fact, what I perceive
is a creative construction of my
nervous system. That this premise is a
destructive lie becomes obvious when
the same events are viewed from a
different perspective – e.g., hindsight.
The lie I tell myself: “I see things as they really are.”
Our perception is a creation of our nervous system, not a
complete and valid depiction of reality: Evidence from
rational analysis.
The various forms of self-sabotage result from the
presumed, but bogus, premise of perception, namely
that we see the world as it really is. In fact, what we see
is a creation of our nervous system.
To appreciate the source of your knowledge about the
world outside of you, consider the familiar question:
When a tree falls in the forest, and no one
is around to hear it, is there a sound?
Sound exists only in
the brain of the
beholder
When the tree falls, it produces a series of
pressure waves in the surrounding air. The ear
drum converts these waves into a mechanical
signal which is transmitted by 3 small bones to
the fluid filled cochlea - the spiral bony canal of
the inner ear. Hair cells of the cochlea are the
actual receptors. Each is tuned to a particular
frequency of the fluid waves. Hair cell vibrations
are converted to electrical impulses, and
transmitted along the auditory nerve to the
auditory cortex where intensity and frequency
of the vibrations are mapped. Neither pressure
waves, physical movements of body parts
[bones, hair], nor electrical signals are sound.
Sound is an experience that is created by, and
exists only in, the mind of the perceiver.
So, if there is no one around to hear it, a tree
falling in the forest produces no sound — only
pressure waves in the surrounding air.
Explanatory Emergence
Subjec tive experience emergence from biological processes. The principles that govern
experience are new and different from the principles of biology.
To exerecise will, these principles must be appreciatioed at a first-person level. Like martial
arts or any performance, observers knowledge is insufficient for successful performance,
one needs the muschel skills.
There are no black dots; there is no movement.
These phenomena were created by your nervous system
You do not see things as they are
Aristotle’s exhortation: “Know thyself” makes the
distinction between the knower and what is
known.
Optical Illusions
• The organizational mechanisms
of vision are best demonstrated
by illusions. Illusions illustrate
that perception is a creative
construction that the brain
makes in interpreting visual data
....Learning does not prevent us
from being taken in by these
illusions.
— Eric Kandel
Choosing what is figure and what is background
can determine the reality your experience
Ocampo
Look closely. The whole
is different than the sum
of its parts
This remarkable work contains embedded figures
that emerge as you shift your focus. How many
can you discern?
Illusions of Size
The figures are identical How its done
Your perception is a creation of your nervous system, not the
valid representation of objective reality that you take it to be.
Evidence from direct experience.
The organizational mechanisms of
vision are best demonstrated by
illusions. Illusions illustrate that
perception is a creative
construction that the brain makes
in interpreting visual data
....Learning does not prevent us
from being taken in by these
illusions.
— Eric Kandel
6 or 7 cubes?
The Case Against Certainty

More Related Content

Similar to The Case Against Certainty

BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docxBRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
jackiewalcutt
 
Photography Empathy & Mirror Neurons
Photography Empathy & Mirror NeuronsPhotography Empathy & Mirror Neurons
Photography Empathy & Mirror Neurons
Sharon Gershoni
 
What is consciousness?
What is consciousness?What is consciousness?
What is consciousness?
DMLab
 
Visual illusions
Visual illusionsVisual illusions
Visual illusions
tessywyatt
 
Intuition Its Powers and Perils Introduction .docx
Intuition Its Powers and Perils  Introduction  .docxIntuition Its Powers and Perils  Introduction  .docx
Intuition Its Powers and Perils Introduction .docx
durantheseldine
 
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docxChapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
robertad6
 
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docxChapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
keturahhazelhurst
 

Similar to The Case Against Certainty (15)

Perception
Perception Perception
Perception
 
BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docxBRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
BRAINS, MINDS, AND CONSCIOuSNESSNo area of the debate betwee.docx
 
Photography Empathy & Mirror Neurons
Photography Empathy & Mirror NeuronsPhotography Empathy & Mirror Neurons
Photography Empathy & Mirror Neurons
 
Essay On Perception
Essay On PerceptionEssay On Perception
Essay On Perception
 
edu
eduedu
edu
 
Perceptual Errors
Perceptual ErrorsPerceptual Errors
Perceptual Errors
 
024a - The man and his limits
024a - The man and his limits024a - The man and his limits
024a - The man and his limits
 
What is consciousness?
What is consciousness?What is consciousness?
What is consciousness?
 
Visual illusions
Visual illusionsVisual illusions
Visual illusions
 
Chapter i dream have a meaning
Chapter i dream have a meaningChapter i dream have a meaning
Chapter i dream have a meaning
 
Computer Consciousness Creativity
Computer Consciousness CreativityComputer Consciousness Creativity
Computer Consciousness Creativity
 
Perception
PerceptionPerception
Perception
 
Intuition Its Powers and Perils Introduction .docx
Intuition Its Powers and Perils  Introduction  .docxIntuition Its Powers and Perils  Introduction  .docx
Intuition Its Powers and Perils Introduction .docx
 
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docxChapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
 
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docxChapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
Chapter 5Sensation and PerceptionFigure 5.1 If you wer.docx
 

Recently uploaded

Recently uploaded (20)

O898O367676 Call Girls In Ahmedabad Escort Service Available 24×7 In Ahmedabad
O898O367676 Call Girls In Ahmedabad Escort Service Available 24×7 In AhmedabadO898O367676 Call Girls In Ahmedabad Escort Service Available 24×7 In Ahmedabad
O898O367676 Call Girls In Ahmedabad Escort Service Available 24×7 In Ahmedabad
 
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
(Low Rate RASHMI ) Rate Of Call Girls Jaipur ❣ 8445551418 ❣ Elite Models & Ce...
 
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort ServicePremium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
 
Call Girls Tirupati Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Tirupati Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Tirupati Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Tirupati Just Call 8250077686 Top Class Call Girl Service Available
 
Call Girls Service Jaipur {9521753030} ❤️VVIP RIDDHI Call Girl in Jaipur Raja...
Call Girls Service Jaipur {9521753030} ❤️VVIP RIDDHI Call Girl in Jaipur Raja...Call Girls Service Jaipur {9521753030} ❤️VVIP RIDDHI Call Girl in Jaipur Raja...
Call Girls Service Jaipur {9521753030} ❤️VVIP RIDDHI Call Girl in Jaipur Raja...
 
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
Best Rate (Patna ) Call Girls Patna ⟟ 8617370543 ⟟ High Class Call Girl In 5 ...
 
Call Girls Bareilly Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Bareilly Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Bareilly Just Call 8250077686 Top Class Call Girl Service Available
 
Top Rated Bangalore Call Girls Richmond Circle ⟟ 9332606886 ⟟ Call Me For Ge...
Top Rated Bangalore Call Girls Richmond Circle ⟟  9332606886 ⟟ Call Me For Ge...Top Rated Bangalore Call Girls Richmond Circle ⟟  9332606886 ⟟ Call Me For Ge...
Top Rated Bangalore Call Girls Richmond Circle ⟟ 9332606886 ⟟ Call Me For Ge...
 
Mumbai ] (Call Girls) in Mumbai 10k @ I'm VIP Independent Escorts Girls 98333...
Mumbai ] (Call Girls) in Mumbai 10k @ I'm VIP Independent Escorts Girls 98333...Mumbai ] (Call Girls) in Mumbai 10k @ I'm VIP Independent Escorts Girls 98333...
Mumbai ] (Call Girls) in Mumbai 10k @ I'm VIP Independent Escorts Girls 98333...
 
Top Rated Bangalore Call Girls Ramamurthy Nagar ⟟ 9332606886 ⟟ Call Me For G...
Top Rated Bangalore Call Girls Ramamurthy Nagar ⟟  9332606886 ⟟ Call Me For G...Top Rated Bangalore Call Girls Ramamurthy Nagar ⟟  9332606886 ⟟ Call Me For G...
Top Rated Bangalore Call Girls Ramamurthy Nagar ⟟ 9332606886 ⟟ Call Me For G...
 
Russian Call Girls Service Jaipur {8445551418} ❤️PALLAVI VIP Jaipur Call Gir...
Russian Call Girls Service  Jaipur {8445551418} ❤️PALLAVI VIP Jaipur Call Gir...Russian Call Girls Service  Jaipur {8445551418} ❤️PALLAVI VIP Jaipur Call Gir...
Russian Call Girls Service Jaipur {8445551418} ❤️PALLAVI VIP Jaipur Call Gir...
 
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
VIP Hyderabad Call Girls Bahadurpally 7877925207 ₹5000 To 25K With AC Room 💚😋
 
Top Rated Hyderabad Call Girls Erragadda ⟟ 9332606886 ⟟ Call Me For Genuine ...
Top Rated  Hyderabad Call Girls Erragadda ⟟ 9332606886 ⟟ Call Me For Genuine ...Top Rated  Hyderabad Call Girls Erragadda ⟟ 9332606886 ⟟ Call Me For Genuine ...
Top Rated Hyderabad Call Girls Erragadda ⟟ 9332606886 ⟟ Call Me For Genuine ...
 
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Ooty Just Call 8250077686 Top Class Call Girl Service Available
 
The Most Attractive Hyderabad Call Girls Kothapet 𖠋 9332606886 𖠋 Will You Mis...
The Most Attractive Hyderabad Call Girls Kothapet 𖠋 9332606886 𖠋 Will You Mis...The Most Attractive Hyderabad Call Girls Kothapet 𖠋 9332606886 𖠋 Will You Mis...
The Most Attractive Hyderabad Call Girls Kothapet 𖠋 9332606886 𖠋 Will You Mis...
 
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
Night 7k to 12k Chennai City Center Call Girls 👉👉 7427069034⭐⭐ 100% Genuine E...
 
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
Best Rate (Guwahati ) Call Girls Guwahati ⟟ 8617370543 ⟟ High Class Call Girl...
 
VIP Service Call Girls Sindhi Colony 📳 7877925207 For 18+ VIP Call Girl At Th...
VIP Service Call Girls Sindhi Colony 📳 7877925207 For 18+ VIP Call Girl At Th...VIP Service Call Girls Sindhi Colony 📳 7877925207 For 18+ VIP Call Girl At Th...
VIP Service Call Girls Sindhi Colony 📳 7877925207 For 18+ VIP Call Girl At Th...
 
Top Rated Bangalore Call Girls Mg Road ⟟ 9332606886 ⟟ Call Me For Genuine S...
Top Rated Bangalore Call Girls Mg Road ⟟   9332606886 ⟟ Call Me For Genuine S...Top Rated Bangalore Call Girls Mg Road ⟟   9332606886 ⟟ Call Me For Genuine S...
Top Rated Bangalore Call Girls Mg Road ⟟ 9332606886 ⟟ Call Me For Genuine S...
 
Call Girls Guntur Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Guntur  Just Call 8250077686 Top Class Call Girl Service AvailableCall Girls Guntur  Just Call 8250077686 Top Class Call Girl Service Available
Call Girls Guntur Just Call 8250077686 Top Class Call Girl Service Available
 

The Case Against Certainty

  • 1. A casual stroll through a lunatic asylum shows that certainty about one's beliefs does not prove anything - Nietzsche
  • 2. In eastern philosophy, we are viewed as trapped in Maya [illusion, deception]. The entrapment results from the tacit but bogus premise of perception: I see things as they really are.
  • 3. We do not see the world as it really is. Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth. - Marcus Aurelius
  • 4. Believe Me! People who claim to know the universal truth have been taken in by an illusion, or worse: They are intentionally lying. Even though you may feel certain of your interpretation of the truth, the truth may appear different from a different perspective
  • 5. Seeing is Believing? [There are no black dots] People act counter to their interests because they are taken in by the Soul Illusion - the tacit acceptance of the false premise that your experience of reality is the same as reality.
  • 6. I will make the case against certainty to two audiences: Viewing the optical illusions will give you the opportunity to experience the evidence directly that your perception is a creation of your nervous system, not an accurate and complete depiction of the external world. But I’ll start with the more conventional case designed for the more conventional audience. The argument is directed to your rational mind; the kind of argument that may be made in a college psychology course.
  • 7. In eastern philosophy we are viewed as trapped in "Maya.” The entrapment results from the tacit but bogus premise of perception: I see things as they really are. In fact, what I perceive is a creative construction of my nervous system. That this premise is a destructive lie becomes obvious when the same events are viewed from a different perspective – e.g., hindsight. The lie I tell myself: “I see things as they really are.”
  • 8. Our perception is a creation of our nervous system, not a complete and valid depiction of reality: Evidence from rational analysis. The various forms of self-sabotage result from the presumed, but bogus, premise of perception, namely that we see the world as it really is. In fact, what we see is a creation of our nervous system. To appreciate the source of your knowledge about the world outside of you, consider the familiar question:
  • 9. When a tree falls in the forest, and no one is around to hear it, is there a sound?
  • 10. Sound exists only in the brain of the beholder When the tree falls, it produces a series of pressure waves in the surrounding air. The ear drum converts these waves into a mechanical signal which is transmitted by 3 small bones to the fluid filled cochlea - the spiral bony canal of the inner ear. Hair cells of the cochlea are the actual receptors. Each is tuned to a particular frequency of the fluid waves. Hair cell vibrations are converted to electrical impulses, and transmitted along the auditory nerve to the auditory cortex where intensity and frequency of the vibrations are mapped. Neither pressure waves, physical movements of body parts [bones, hair], nor electrical signals are sound. Sound is an experience that is created by, and exists only in, the mind of the perceiver. So, if there is no one around to hear it, a tree falling in the forest produces no sound — only pressure waves in the surrounding air.
  • 11. Explanatory Emergence Subjec tive experience emergence from biological processes. The principles that govern experience are new and different from the principles of biology. To exerecise will, these principles must be appreciatioed at a first-person level. Like martial arts or any performance, observers knowledge is insufficient for successful performance, one needs the muschel skills.
  • 12. There are no black dots; there is no movement. These phenomena were created by your nervous system You do not see things as they are
  • 13. Aristotle’s exhortation: “Know thyself” makes the distinction between the knower and what is known.
  • 14. Optical Illusions • The organizational mechanisms of vision are best demonstrated by illusions. Illusions illustrate that perception is a creative construction that the brain makes in interpreting visual data ....Learning does not prevent us from being taken in by these illusions. — Eric Kandel Choosing what is figure and what is background can determine the reality your experience
  • 15. Ocampo Look closely. The whole is different than the sum of its parts
  • 16.
  • 17.
  • 18. This remarkable work contains embedded figures that emerge as you shift your focus. How many can you discern?
  • 19. Illusions of Size The figures are identical How its done
  • 20. Your perception is a creation of your nervous system, not the valid representation of objective reality that you take it to be. Evidence from direct experience. The organizational mechanisms of vision are best demonstrated by illusions. Illusions illustrate that perception is a creative construction that the brain makes in interpreting visual data ....Learning does not prevent us from being taken in by these illusions. — Eric Kandel 6 or 7 cubes?