Sorry should have clarified that where there is radical impredicativity (which is the case for epistemic systems subject to paradigm shift), then ergodicity prevails even if hysteresis is statistically significant. The opposite view was upheld by Godley, Cripps & CEPG in the UK of my youth.

My understanding is that cocaine, rather than category theory, brought about such salutary outcomes on trading floors as permitted Soros to prevail over Lamont- i.e. put UK on a path to irretrievable ‘national’ decline- e.g having a Varma like Punjabi Hindu as PM.