A set of relations fixed by experience for the purpose of understanding? This would distinguish information from a fact, which might be 'A set of relations fixed by experience'. If relations, and therefore, information can be symbolically represented, then what the computer processes is the symbolic form of information. I haven't a clue how this fits into Peter's project. Sincerely, Phil Enns Toronto, ON ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html