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Derek Antony Parfit FBA (/ ˈ p ɑːr f ɪ t /; 11 December 1942 – 2 January 2017 [3] [4]) was a British philosopher who specialised in personal identity, rationality, and ethics. He is widely considered one of the most important and influential moral philosophers of the late 20th and early 21st centuries.
Derek Parfit. This debate about further facts concerning personal identity over time is most closely associated with Derek Parfit. In his Reasons and Persons, he describes the non-reductionist's view that "personal identity is a deep further fact, distinct from physical and psychological continuity". [1]
Reasons and Persons is a 1984 book by the philosopher Derek Parfit, in which the author discusses ethics, rationality and personal identity.. It is divided into four parts, dedicated to self-defeating theories, rationality and time, personal identity and responsibility toward future generations.
The teletransportation paradox or teletransport paradox (also known in alternative forms as the duplicates paradox) is a thought experiment on the philosophy of identity that challenges common intuitions on the nature of self and consciousness, formulated by Derek Parfit in his 1984 book Reasons and Persons. [1]
The mere addition paradox (also known as the repugnant conclusion) is a problem in ethics identified by Derek Parfit and discussed in his book Reasons and Persons (1984). The paradox identifies the mutual incompatibility of four intuitively compelling assertions about the relative value of populations.
In metaphysics, identity (from Latin: identitas, "sameness") is the relation each thing bears only to itself. [1] [2] The notion of identity gives rise to many philosophical problems, including the identity of indiscernibles (if x and y share all their properties, are they one and the same thing?), and questions about change and personal identity over time (what has to be the case for a person ...
According to Parfit, it is rational for people who perceive very little connectedness with their future self to act in ways that neglect the future self (e.g., by smoking). The psychological work that followed did not similarly argue for Parfit's normative view but has instead attempted to test the descriptive validity of Parfit's theory. [6]
One thought experiment in the philosophy of personal identity is the teletransportation paradox. It deals with whether the concept of one's future self is a coherent concept. The thought experiment was formulated by Derek Parfit in his 1984 book Reasons and Persons. [47]