In Offworld Trading Company, resource-producing buildings gain significant bonuses to production for each neighboring building of the same type. A great contiguous field of the same type of building has the greatest possible production power. However, high level players usually avoid this sort of base layout. Commentator Zultar explains that top players recognize the diminishing returns on adjacency bonuses, and also know that a single field of tiles is a juicy target for black market sabotage (as happens to one player in the clip). By defensively splitting tiles, you sacrifice some of one type of value (production from extra adjacency bonuses) in order to reduce the value for opponents in attacking you.