LOGISTICS: a factory's scale creates ×6 transport load; capacity comes from ports, airports and freight hubs. If there's a shortfall, exports and industrial output drop PROPORTIONALLY (they don't stop).
INTERNET: high-tech buildings and robotic, AI and autonomous variants (except energy) need internet; if coverage is low, production slows.
ENERGY & WATER are instant products. Solar is ×2 in summer and ×0.5 in winter, while wind is strong in winter. Geothermal can only be built in countries with the potential.