As an addendum, it seems to me that you may not necessarily need a 'long-term planner' (or 'time-unbounded agent') in the environment. A similar outcome may also be attainable if the environment contains a tiling of time-bound agents who can all trade across each other in ways such that the overall trade network implements long term power seeking.

Concept Dictionary.

Concepts that I intend to use or invoke in my writings later, or are parts of my reasoning about AI risk or related complex systems phenomena.