Abstract

In Floridi (2005), I argued that a definition of semantic information in terms of alethically-neutral content–that is, strings of well-formed and meaningful data that can be additionally qualified as true or untrue (false, for the classicists among us), depending on supervening evaluations–provides only necessary but insufficient conditions: if some content is to qualify as semantic information, it must also be true. One speaks of false information in the same way as one qualifies someone as a false friend, (i.e. not a friend at all). This leads to a refinement of the initial definition into: [Def]: p qualifies as semantic information if and only if p is (constituted by) well-formed, meaningful and veridical data. [Def] captures the general consensus reached by the debate and mentioned at the outset of this section. According to it, semantic information is, strictly speaking, inherently truth-constituted and not a contingent truth-bearer, exactly like knowledge but unlike propositions or beliefs, for example, which are what they are independently of their truth values and then, because of their truth-aptness, may be further qualified alethically.