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Consciousness,
Free Will, and
Singularity
What Philosophy has to
Say about it.
Neuroscience and Philosophy
Recent Developments in Neuroscience
• Focus on issues, relevant for human self-image
Consciousness, self-consciousness, free will

• Solution of old philosophical problems?
Free will, self-consciousness as illusions

2
Neuroscience and Philosophy
Philosophical issues
• Historical background
• Conceptual questions, criteria
What do we mean if we talk about
consciousness, intelligence, freedom?

• Ethical issues
Criminal law, responsibility in everyday situations

3
Neuroscience and Philosophy
Empirical issues
• Are these standards met?
• Do we have the relevant abilities?

4
Part I
Understanding Consciousness

5
Consciousness
•

Interest in ancient cultural documents
Caves of Lascaux
Bible
Homer, Plato

6
Ancient Ideas
Soul as a Bird

Common also in
non-Western
cultures
Ancient Ideas
Soul as a Bird
Ancient Ideas
Soul as a Homunculus
Ancient Ideas
Soul as a Homunculus
Mind & Soul
Soul (anima, psyche, pneuma, flatus, spiritus atman)
• Substance
• Divine creation
• Multitude of functions (cognitive, vital, volitional)

Mind (mens)
• Replaces „soul“ already in Descartes
• Not necessarily substance
• Focus on cognitive abilities
• Vital functions excluded („vital force“)
11
Consciousness
Consciousness as a property
• Property of a person, a persons mental states

No non-circular definition

• No general category, nothing similar or different that can
be captured without reference to consciousness
• One’s own experience required for understanding

Distinctive feature

• Privileged first-person access

Relation to physical processes open
• May be realized by brain processes
12
Consciousness and the Brain
Identity claims sensible?
•

“Identity of an object with itself trivial,
identity with another object false”
Roughly speaking, to say of two things that they are identical is
nonsense, and to say of one thing that it is identical with itself is
to say nothing at all. Wittgenstein, Tractatus 5.5303

13

L. Wittgenstein
1889-1951
Consciousness and the Brain
Identity claim sensible:
• One object, different perspectives
Billy the Kid
• Identical with William H. Bonney jr.?
• Or with Ollie L. Roberts, called Brushy Bill?

14
William H. Bonney jr.

Billy the Kid

Ollie L. Roberts
Consciousness and the Brain
Beliefs, desires, reasons, feelings
• “No natural properties”
There is an unexplained gap between the
category of physical phenomena, and the
B. Libet
category of subjective phenomena. .. If you
looked into the brain with a full knowledge of its physical makeup and
nerve cell activities, you would see nothing that described subjective
experience. You would only see cellular structures, their
interconnections, and the production of nerve impulses.
Libet, Mind Time, 153

•

Relation between mind and brain mysterious
Does it make sense?
Argument
• No consciousness detectable in the
brain
• Consciousness not a natural entity

Computer
• “No stored texts, pictures, sounds
detectable on a hard drive”
• “Stored texts, pictures, sounds no
natural entities”

Makes no sense!
How to make sense
Two levels of description
Output level
• Texts, pictures, sounds

Hardware level
• Patterns of magnetic activity

Two descriptions of one entity
Understanding requires
• Precise description of explanandum
Texts vs. pictures, different characters, colors

• Understanding the electrical code
Binary code, ASCII , compression algorithms, etc.
Resolving the Dilemma
Two levels of description

First person perspective
• Beliefs, desires, reasons, feelings

Third person perspective
• Neural activities
• Activation states of neural assemblies

Two descriptions of one process
Resolving the Dilemma
Understanding requires
• Understanding the neural code
• Precise description of correlating
mental states and brain states

• Connecting 1st and 3rd person
perspective
Enables the use of brain science to explain
1st person experience
Part III
Free Will

20
Free Will
Freedom and determinism
• Freedom requires non-determined action
„The idea of human free will is incompatible, in
principle, with scientific considerations. Scientific
research is based on the assumption that everything
that happens has a cause, and that it is possible to
find this cause. I cannot understand why an empirical
scientist can believe that free
and, therefore, undetermined action is conceivable.“
Wolfgang Prinz

Dilemma
Non-determined action but naturalism is wrong
Naturalism is right, but no non-determined action

Wolfgang
Prinz
Intuitions
Distinction from compulsion
• Actions performed under compulsion not free
• “Principle of Autonomy”

Distinction from chance
• Random Events not free
• “Principle of Authorship” - ascription to agent
• Necessary for responsibility

22
Self-Determination
Distinction from external determination:
• Principle of autonomy met

Determination by agent:
• Principle of authorship met

Example:
• Agent’s believes that stealing is reprehensible

• Agent’s belief makes it intelligible that they paid

23
Self-Determination
Self-Determination
• Adequate analysis of minimal concept
• Additional criteria may be necessary

24
Self-Determination
Action self-determined if…
•

… determined by features constituting agent themselves

•

… personal preferences explain that x and not y was performed

Physical realization of personal preferences
•

Enables self-determination

Determination by agent’s preferences
•

Robust connection between preferences and action

•

Indetermination may interfere with agent’s preferences

Decisive
•

Not whether - how action is determined

•

Determination by self: self-determination
25
Waiving Determination
Before birth
• No change – agent cannot take advantage of additional
freedom

Before the beginning of the decision process
• Before: p believes that theft is reprehensible
• Afterwards: p accepts theft (as a matter of fact)
• p without control over change of their own preferences

During the process of decision making
• Process of decision making disrupted
– rational decision impossible
26
Freedom and Determination
No “enhancement” of freedom

Decisive:
• Not whether but how an action is determined
• Neurally realized act of will may be self-determined

Freedom, determination compatible

27
finis

28

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Consciousness, Free Will, and Singularity

  • 1. Consciousness, Free Will, and Singularity What Philosophy has to Say about it.
  • 2. Neuroscience and Philosophy Recent Developments in Neuroscience • Focus on issues, relevant for human self-image Consciousness, self-consciousness, free will • Solution of old philosophical problems? Free will, self-consciousness as illusions 2
  • 3. Neuroscience and Philosophy Philosophical issues • Historical background • Conceptual questions, criteria What do we mean if we talk about consciousness, intelligence, freedom? • Ethical issues Criminal law, responsibility in everyday situations 3
  • 4. Neuroscience and Philosophy Empirical issues • Are these standards met? • Do we have the relevant abilities? 4
  • 6. Consciousness • Interest in ancient cultural documents Caves of Lascaux Bible Homer, Plato 6
  • 7. Ancient Ideas Soul as a Bird Common also in non-Western cultures
  • 9. Ancient Ideas Soul as a Homunculus
  • 10. Ancient Ideas Soul as a Homunculus
  • 11. Mind & Soul Soul (anima, psyche, pneuma, flatus, spiritus atman) • Substance • Divine creation • Multitude of functions (cognitive, vital, volitional) Mind (mens) • Replaces „soul“ already in Descartes • Not necessarily substance • Focus on cognitive abilities • Vital functions excluded („vital force“) 11
  • 12. Consciousness Consciousness as a property • Property of a person, a persons mental states No non-circular definition • No general category, nothing similar or different that can be captured without reference to consciousness • One’s own experience required for understanding Distinctive feature • Privileged first-person access Relation to physical processes open • May be realized by brain processes 12
  • 13. Consciousness and the Brain Identity claims sensible? • “Identity of an object with itself trivial, identity with another object false” Roughly speaking, to say of two things that they are identical is nonsense, and to say of one thing that it is identical with itself is to say nothing at all. Wittgenstein, Tractatus 5.5303 13 L. Wittgenstein 1889-1951
  • 14. Consciousness and the Brain Identity claim sensible: • One object, different perspectives Billy the Kid • Identical with William H. Bonney jr.? • Or with Ollie L. Roberts, called Brushy Bill? 14 William H. Bonney jr. Billy the Kid Ollie L. Roberts
  • 15. Consciousness and the Brain Beliefs, desires, reasons, feelings • “No natural properties” There is an unexplained gap between the category of physical phenomena, and the B. Libet category of subjective phenomena. .. If you looked into the brain with a full knowledge of its physical makeup and nerve cell activities, you would see nothing that described subjective experience. You would only see cellular structures, their interconnections, and the production of nerve impulses. Libet, Mind Time, 153 • Relation between mind and brain mysterious
  • 16. Does it make sense? Argument • No consciousness detectable in the brain • Consciousness not a natural entity Computer • “No stored texts, pictures, sounds detectable on a hard drive” • “Stored texts, pictures, sounds no natural entities” Makes no sense!
  • 17. How to make sense Two levels of description Output level • Texts, pictures, sounds Hardware level • Patterns of magnetic activity Two descriptions of one entity Understanding requires • Precise description of explanandum Texts vs. pictures, different characters, colors • Understanding the electrical code Binary code, ASCII , compression algorithms, etc.
  • 18. Resolving the Dilemma Two levels of description First person perspective • Beliefs, desires, reasons, feelings Third person perspective • Neural activities • Activation states of neural assemblies Two descriptions of one process
  • 19. Resolving the Dilemma Understanding requires • Understanding the neural code • Precise description of correlating mental states and brain states • Connecting 1st and 3rd person perspective Enables the use of brain science to explain 1st person experience
  • 21. Free Will Freedom and determinism • Freedom requires non-determined action „The idea of human free will is incompatible, in principle, with scientific considerations. Scientific research is based on the assumption that everything that happens has a cause, and that it is possible to find this cause. I cannot understand why an empirical scientist can believe that free and, therefore, undetermined action is conceivable.“ Wolfgang Prinz Dilemma Non-determined action but naturalism is wrong Naturalism is right, but no non-determined action Wolfgang Prinz
  • 22. Intuitions Distinction from compulsion • Actions performed under compulsion not free • “Principle of Autonomy” Distinction from chance • Random Events not free • “Principle of Authorship” - ascription to agent • Necessary for responsibility 22
  • 23. Self-Determination Distinction from external determination: • Principle of autonomy met Determination by agent: • Principle of authorship met Example: • Agent’s believes that stealing is reprehensible • Agent’s belief makes it intelligible that they paid 23
  • 24. Self-Determination Self-Determination • Adequate analysis of minimal concept • Additional criteria may be necessary 24
  • 25. Self-Determination Action self-determined if… • … determined by features constituting agent themselves • … personal preferences explain that x and not y was performed Physical realization of personal preferences • Enables self-determination Determination by agent’s preferences • Robust connection between preferences and action • Indetermination may interfere with agent’s preferences Decisive • Not whether - how action is determined • Determination by self: self-determination 25
  • 26. Waiving Determination Before birth • No change – agent cannot take advantage of additional freedom Before the beginning of the decision process • Before: p believes that theft is reprehensible • Afterwards: p accepts theft (as a matter of fact) • p without control over change of their own preferences During the process of decision making • Process of decision making disrupted – rational decision impossible 26
  • 27. Freedom and Determination No “enhancement” of freedom Decisive: • Not whether but how an action is determined • Neurally realized act of will may be self-determined Freedom, determination compatible 27