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Ben Goertzel's Omega Point Ben Goertzel published an essay "Arrow of Time, Part 2" on August 15, where he links subjective time to the recording of new significant differences and suggests leaving a history of changes for future mind versions. As the mind rewrites models, expands memory, and learns to reason anew, its future version stores and processes experience differently. The connection between versions is maintained by whether a later version can translate previous ways of representing experience into its new representations. The analysis of digital personality continuity separates working memory, holding current thought, from episodic memory, which links a person to the past. Goertzel sets a related technical challenge for the self-modifying mind: a later version needs an archive that it can read after changing its own ways of thinking. In Goertzel's model, subjective time grows with the record of significant differences: they change the world model and help choose actions later. When the system masters unfamiliar situations, it must preserve the differences on which choice depends. Goertzel comes to the "Omega Point": the mind retains a common direction - values, ability to correct itself, and coordinate its parts - as the history of experience continues to grow. In this model, stability lies in the direction, while the internal state changes with the growing history. Rapid self-modification increases the requirement for such continuity. Goertzel formulates it as: "The faster the stream of differences, the smaller the average self-translation error should become." As an engineering step, he suggests dividing memory into two parts: working memory that can be rewritten and a replenished journal where the system's conclusions are recorded. This journal retains both corrections and deletions; a later version can compare its transformations with how early representations were organized. Goertzel's philosophical question about personality continuity takes on an engineering form: a future version of the mind must be able to read its own history and verify the connection with early representations, as discussed in Nature Aging, July 2026. 🔗 Read original →