I think a good example that aids definition is "meta-optimisation" (aka "meta-computation). Optimisation is a process that aims to find the best possible solut

I think a good example that aids definition is "meta-optimisation" (aka "meta-computation). Optimisation is a process that aims to find the best possible solution to a problem. E.g. let's use Dijkstra's algorithm to find the shortest path between two locations. Meta-optimisation is finding the best possible process to do optimisation. E.g. let's use A* with a reasonable heuristic instead of Dijkstra's algorithm, because it'll be faster to run and give the same optimal result. The meta-game here is that time-to-compute PLUS travel the path is the real thing that needs optimising - not just the path length.