Why though? It would be 2 developers working against each other. First develops a game mechanic where each farmer has x0.9 of the efficiency of the former. Second just optimize the effect automatically to a minimum making it meaningless for the player. If you like to plan less for your setup, why don't you just suggest to remove the feature that's also not full documented with the numbers? I'd just keep it as it is, but it should be documented with the numbers clearer.

Oh, i completely misread that, i thought we were talking about expanding the radius a villager goes to a new farm if necessary. Because that radius is quite small actually.

If the farm is full, this is already the case, like for all resource gathering. Gatherers have diminishing efficiency in function of how much they are on a single field, hence the initial suggestion of having them spreading.

This update does have the issue:    https://github.com/JustusAvramenko/delenda_est/issues/76   It doesn't happen on choosing 'Skirmishes' maps Only happens on 'random' maps with map sizes above small(768)

Do workers tasked on busy farms not already look for spots on nearby farms? Or do you mean that they should automatically distribute to all available farms?