The specious present is the time duration wherein one's perceptions are considered to be in the present. Time perception studies the sense of time, which differs from other senses since time cannot be directly perceived but must be reconstructed by the brain.
The concept was further developed by philosopher William James. James defined the specious present to be "the prototype of all conceived times... the short duration of which we are immediately and incessantly sensible". C. D. Broad in "Scientific Thought" (1930) further elaborated on the concept of the specious present, and considered that the Specious Present may be considered as the temporal equivalent of a sensory datum.
Through a series of declarative sentences (or "propositions"), one can affirm the existence of the specious present. For example, to see a second-hand moving is quite a different thing from seeing that an hour-hand has moved. More formally:
- What an observer sees, the observer sees as present.
- The observer sees motion.
- Motion occurs over an interval.
Therefore, in conclusion, what the observer sees as present occurs over an interval.
However, this argument is arguably unsound; namely, it equivocates between the sense of "sees as present" in premise (1) and "sees as present" in premise (2). In premise (1), 'sees as present' expresses a relation between the observer and his/her inner representation of whatever is seen, whereas in premise (2), 'sees as present' expresses a relation between the observer and the object of sight (e.g. the causal source of the observer's perception.) Moreover, a counterexample to premise one is provided by contemporary physics; because of the distance of celestial objects, they appear to us presently as they in fact appeared hundreds of thousands, millions, or even billions of years ago.
Finally, the claim of what precisely is being affirmed, in affirming the 'existence' of the specious present, is difficult to clarify. Philosophical theories of time do not usually interpret time to be in any unique way a production of human phenomenology, and the claim that we have some faculty by which we are aware of successive states of consciousness is trivially true.
- James, W. (1893). The principles of psychology. New York: H. Holt and Company. Page 609.
- Anonymous (E. Robert Kelly), The Alternative: A Study in Psychology. London: Macmillan and Co., 1882.
- Andersen, Holly; Rick Grush (pending). "A brief history of time-consciousness: historical precursors to James and Husserl" (PDF). Journal of the History of Philosophy. Retrieved 2008-02-02. Check date values in:
- "The Experience and Perception of Time". Retrieved 2009-10-22.
|Wikibooks has more on the topic of: Specious present|
- Andersen, Holly, and Rick Grush, "A brief history of time-consciousness: historical precursors to James and Husserl", To appear in the Journal of the History of Philosophy.
- Le Poidevin, Robin, "The Experience and Perception of Time", The Stanford Encyclopedia of Philosophy (Winter 2004 Edition), Edward N. Zalta (ed.)
- Hodder, A. (1901). The adversaries of the sceptic; or, The specious present, a new inquiry into human knowledge. Chapter II, The Specious Present. London: S. Sonnenschein &. Pages 36 – 56.