Metaphysics 1

Section One Exams

  • Distribution of Section One exams has occurred.

  • Students who completed the planning phase received:

    • Grade for the plan

    • Feedback notes on the plan in preparation for execution

    • Participation grade (subject to change)

  • Participation grades categorized into ranges:

    • No specific grades like B+, B-; rather general ranges like A range, B range

    • Opportunity to discuss participation grades for improvement during one-on-one check-ins.

Future Section Exams

  • Reminder of three more section exams scheduled.

  • Next exam date: October 21

  • Structure of future exams will include:

    • Planning phase

    • Execution phase: This phase will involve applying the plans developed, likely in the form of essay writing or problem-solving, demonstrating comprehension and critical thinking.

  • After the second essay, no further essay writing is required for the class; responsibilities will shift to planning for remaining exams.

Welcome Question on Emotions and Dreams

  • Inquiry: Why do we maintain strong emotions for actions/non-actions committed in dreams?

  • Example discussed: Scenario from Mad Men where a character faces anger for a non-existent act (kicking a dog) in a dream.

  • Emotional connection between dream actions and real-life feelings elaborated:

    • Dreams may cause emotional responses similar to real-life scenarios

    • Potential feelings of fear about a person's hesitation to act negatively in real life due to dream experiences

    • Confusion about actual actions vs. dream actions

Transition to Metaphysics

Definition of Metaphysics

  • Branch of philosophy focused on fundamental features of reality, including:

    • Nonphysical entities (e.g., mental states, free will, abstract concepts)

    • Employs a priori methodology, focusing on reasoning independent of experience.

A Priori and A Posteriori Knowledge

  • A Priori Knowledge: Knowable independent of experience, requiring only the understanding of language. This type of knowledge is justified purely by reason or definition, without reference to empirical observation, and concerns truths that are necessary.

    • Example: "All bachelors are unmarried men."

  • A Posteriori Knowledge: Knowable based on experience. This knowledge requires empirical evidence or sensory experience for its justification, and its truth is contingent on how the world is.

    • Example: Determining if it is raining by observation or experience (e.g., the chicken is hot, based on tasting).

Arguments Related to Beliefs and Reality

Descartes' Insights

  • Descartes begins by reflecting on his false beliefs and the implications they have on his belief system.

  • Concern over the potential for a chain of beliefs built on false foundations:

    • If a false belief exists, surrounding beliefs may also be false, undermining the entire structure of his knowledge.

  • Raising questions about the reliability of beliefs.

Foundationalism

  • Philosophical position asserting that beliefs are built on foundational beliefs or basic beliefs that are self-evident or justified directly without recourse to other beliefs.

  • If basic beliefs are found faulty, derived beliefs cannot be trusted.

Descartes’ Three Arguments

1. Unreliability of the Senses Argument

  • Example given by Descartes:

    • Misjudging distances, believing something is close when it is not.

  • Philosophical takeaway:

    • If senses deceived once, trust in all senses is questionable. This argument suggests that if our senses have ever misled us, even in minor ways, we cannot be entirely certain of their reliability even in seemingly clear perceptions, thus casting doubt on empirical observations as a source of truth.

2. Dream Argument

  • Descartes questions how to distinguish dreams from reality:

    • Experiences in dreams often feel real and can cause confusion about actual states. The vividness and realism of dreams make it difficult to definitively distinguish waking experience from dreaming.

  • Example: Descartes retrospects about dreaming that he is in a specific place while actually in bed.

  • Suggestion that if realism exists in dreams, reality becomes uncertain; if we cannot be certain we are awake, then all our sensory experiences and perceived reality become subject to doubt.

3. Evil Genius Argument

  • Descartes hypothesizes a potentially deceiving entity (evil genius) that could manipulate beliefs:

    • Acknowledges the existence of a supremely good God; however, he diverges to a malevolent being potentially misleading him. This is a hyperbolic doubt, positing an all-powerful, malicious deceiver who could manipulate all our perceptions and thoughts, even mathematical truths.

  • Underlying concept:

    • If he cannot confirm notions of reality due to potential deception, it leads to doubt about all his beliefs, pushing the limit of what can be doubted about reality itself.

Conclusion on Descartes’ Philosophical Approach

  • Descartes seeks to obliterate his prior beliefs to construct a new, trustworthy foundation of certain truths to avoid false beliefs.

  • Necessary for him to disprove the existence of flawed beliefs and the reliability of the senses and dreams before establishing the basis for true knowledge.

  • Final thought for students: Consider which argument (unreliability of senses, dream argument, evil genius) is most or least persuasive, with guidance on structuring arguments and supporting conclusions effectively.

Homework and Next Steps

  • Students are assigned to read Descartes’ Meditation Two for the following class.

  • Reminder of no class on Thursday; upcoming session rescheduled accordingly.

  • Encourage reflections on philosophical arguments during class discussions to enhance understanding.