The question of personal identity can be spelled out as: "What is a sufficient condition for Person X at time 0 to be numerically identical to Person Y at time 1?". This essay will claim that the best account of personal identity consists of three parts; one pre-condition and two necessary conditions: 1. Identity as an equivalence relation (pre-condition), 2. Memory continuity (necessary condition), 3. Physical continuity (necessary condition)
Generally, people either argue for a pure physical continuity account or a pure psychological continuity account. Both accounts are problematic by themselves for various reasons. This essay tries to synthesize both accounts into one and uses the term of embodied memories to describe this synthesis.
Table of Contents
1. Pre-condition
2. Memory continuity
3. Physical continuity
4. Objection
5. Conclusion
Objectives and Topics
This essay aims to define a sufficient condition for numerical personal identity by synthesizing physical and psychological continuity accounts into a unified theory of embodied memories.
- Logical analysis of identity as an equivalence relation
- Critique of psychological continuity accounts
- Evaluation of physical continuity through thought experiments
- Conceptualization of embodied memories
- Addressing identity persistence during unconsciousness
Excerpt from the Book
Physical continuity
Parfit goes even further and challenges the psychological continuity account with his teletransportation example (Parfit, 2002). In his example, a person steps into a machine, a blueprint of their body plan is made and saved, the physical body gets destroyed, the blueprint information is sent to its destination and the body is reproduced with different matter. Parfit argues that since the bodies are psychologically continuous, the person survived and that is what matters. I argue the opposite, namely that this example shows that physical continuity has to be the second necessary condition for the account of numerical identity. The essential parts of the biological brain are the carrier of embodied memories. Embodied memories cannot be recreated in another brain, otherwise those memories would be installed in an inappropriate way. If a person gets reproduced and the exact same memories are installed in the new brain, then this reproduction is qualitatively identical to the original, but not numerically. Even if only one copy of that person is made, solely having the potential to reproduce inhibits numerical identity. The embodiment of memories in the essential parts of the biological brain is the only possible trace of numerical identity and therefore physical continuity has to be the second necessary condition for numerical personal identity.
Summary of Chapters
1. Pre-condition: Defines identity as an equivalence relation and argues that the phenomenon of branching is logically inconsistent with numerical identity.
2. Memory continuity: Examines memory as a necessary condition for identity, emphasizing that memories must be experienced from the inside to be considered authentic.
3. Physical continuity: Argues that psychological continuity alone is insufficient and that the physical brain serves as the essential carrier for embodied memories.
4. Objection: Addresses potential counterarguments regarding state of unconsciousness, distinguishing between diachronic and synchronic concepts of identity.
5. Conclusion: Summarizes that numerical identity requires both physical continuity and appropriate memory-connectivity, acknowledging the need for further research on biological thresholds.
Keywords
Personal identity, numerical identity, physical continuity, memory continuity, embodied memories, branching, equivalence relation, person-stages, unconsciousness, psychological continuity, diachronic, synchronic, consciousness, Parfit, Shoemaker.
Frequently Asked Questions
What is the core subject of this essay?
The essay investigates the sufficient conditions required for a person at one point in time to be numerically identical to a person at a later point in time.
What are the primary thematic pillars?
The work focuses on the intersection of physical and psychological continuity, specifically utilizing the concept of "embodied memories" to bridge traditional philosophical divides.
What is the central research goal?
The goal is to defend a tripartite account of personal identity comprising an equivalence relation pre-condition, memory continuity, and physical continuity.
Which scientific or logical methods are employed?
The author employs logical analysis of identity relations, critiques established psychological accounts, and utilizes thought experiments like Parfit’s teletransportation to test theoretical boundaries.
What topics are discussed in the main body?
The main body covers the logical constraints of identity, the necessity of memory and physical body-stages, and how these concepts hold up during periods of unconsciousness.
Which keywords best describe this research?
Key concepts include numerical identity, embodied memories, branching, and the distinction between diachronic and synchronic identity.
How does the author define "appropriate" memory connection?
An appropriate connection requires that the memory must be experienced internally by the person and cannot be artificially or externally installed.
Why does the author reject purely psychological accounts?
The author argues that psychological continuity fails to account for numerical identity in cases where physical instantiation is replaced, as seen in the teletransportation example.
- Citar trabajo
- Tim Windbrake (Autor), 2020, Understanding identity. What is the best account of personal identity?, Múnich, GRIN Verlag, https://www.grin.com/document/1128115
