Jaron CollisCore ConceptModel of messages proposed by Douglas Hofstadter. Frames contain outer messages which contain inner messages. All levels must be understood to extract the meaning. Consider a modern art exhibit.frameouter messageinner messageframeUnderstanding the frame message is essential to recognize it as a message. If you do not recognise a CD is a frame, you will not realise it contains information.outer messageA set of triggers (or hints) on how the message can be decoded. If fully understood the inner message is always reconstructable. Human minds have an innate ability to process outer messages (languages, symbols, sounds etc.) to extract inner meaning.inner messageThe information payload of the message. Any clues for decoding the message are useless here: e.g. saying "This message is in English" can only be read by those who understand English outer messages. metadatametadataAccording to this model, metadata is an attempt to make the inner message of one message contain the outer message of another. For a system to understand what it processes, there will need to be a set of core messages whose meaning is hard-wired into the system.falsecomputing12002-07-19T21:49:10.607+01:002002-08-27T00:13:26.554+01:00Ideas in GEB bookhttp://walpurg.iwarp.com/GEB.html