... fact that the s e ntences and symbols inscribed or encoded, possess meaning and hence themselves can be about, or directed towards something. Sentences and symbols,in turn, possess meaning in ... provide a perspicuous descr iption of their formalism and assess these claims.It proves essential to distinguish, as Deutsch and Hayden do not, between two ways ofinterpreting their formalism. ... this sense is to be used to store information, expressed in theform of propositions7, or in the case of computers, encoded in such a way that the facts,figures and so on may be decoded and...