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City College of New York
Information can be defined as any sequence or arrangement of things that can convey a message. Here I would like to focus on information coded by biological organisms and how that information is related to their identity. The essence of living things has been difficult to define conceptually. Living things or biological things have certain properties which are unique to them and which are absent in inanimate matter. Defining life has been an ongoing problem for scientists and philosophers, but what is more puzzling is that living organisms do not appear to be defined by the conventional rules of identity. To illustrate what is meant by conventional rules let us look at the Ship of Theseus paradox, which begins with an old boat made of old parts. As this boat is renovated and the old parts are replaced with new ones, it gradually begins to lose its identity. When all the parts of the ship are eventually replaced, can we still say this new renovated ship is the Ship of Theseus? If so, what if we reassembled the old ship from the old parts? Would Theseus now possess two ships? In this paradox it is clear that the problem of identifying the ship stems from defining it in terms of its old and/or new components. The conflict of identity exists because old components are replaced with new ones, confusing our common-sense notions of continuity. (more…)