CF Debate

Lightcone Reification Problem

Overview

Thinking about the last step of a target CF algorithm: if the preceding steps had not happened but the same output were provided directly into the last step, then the last step would still proceed the same as with the full CF algorithm in place. The last step and any future calculations using that output would not know any different. In order to permit conscious experience to occur upon that final step concluding only when the full algorithm actually occurred, we need to incorporate the past lightcone of the last step, including information it does not have direct knowledge of.

It is challenging to develop such an account that is consistent with theories of physics. For instance, the conscious entity exists not in the present moment, but distributed over the past. It is somehow constituted 'in the past' prior to the final necessary step of the algorithm in the present that caused it to come into being (since this is complex computational emergence). Moreover, the present moment of experience relies on its past structure in a non-causal manner (because algorithms in CF can ignore the causal specifics of non-proximate steps).

Responses

  1. Accept epiphenomenalism (see phenomenal binding problem).

  2. Introduce new physics that allows for the reification of worldlines in the sense necessary to address this problem.

Further reading

  • No direct reference currently known. Ideas discussed at Ernst Mach Workshop in Prague (June 2025).