[justifier]

the 'grid' changing bounds is the intended mode of existence

in regard to demon horde the paper(o) states 'channel size increases performance'

but this should be uncontroversial

more resources give better results

it will be an optimisation problem to determine necessary resource alocation for desired results

the shape of the simulation was stated(i) to be a simplified representation of the functionality

the paper discusses 'a movable membrane whose contents cannot diffuse out', the figure is an almost organic shape, much more adaptable than the rectangular simulation demonstration

(o) comjnl.oxfordjournals.org/content/56/12/1450.full.pdf+htmlb

(i) https://youtu.be/helScS3coAE?t=1504

[daveackley]

There's also a more recent 'router' demo(1) that -- though still rigid and rectangular -- does build its own boundary rather than relying on the grid boundary.

(1) https://www.youtube.com/watch?v=I4flQ8XdvJM#t=685