Asteroid mining is how the Grid Network feeds its forward edge. Every mature Hub eventually grows a spaceport; every spaceport feeds a rotation of mining vessels out to the belt and back. The material that comes down — metals, volatiles, rare elements, raw mass for crafting and for energy — is what lets the network keep building without drawing down the planet underneath it.
Why it exists ¶
Asteroids harbour the most valuable materials that are, in practical terms, unlimited. The belt alone holds orders of magnitude more of almost every industrial resource than the planet's accessible crust. For a civilisation that has committed to leaving land alone — the Honeycomb is built to preserve what it surrounds — space is the natural place to mine. Every kilo of asteroid steel is a kilo the Grids don't have to tear out of the earth.
Why the Hubs ¶
Spaceports live at Hubs because Hubs are where the Magway, the power grid, and the logistics of the region all already converge. A lifted payload needs immediate downstream infrastructure — refineries, staging yards, storage, routing — and those only work at Hub density. The Hubs, in turn, grow taller and more self-important with every port they add; a Hub with an active spaceport sits at a higher tier than one without.
What it enables ¶
The long-term posture of the Grid Network is off-planet. Asteroid mining is the first step — a supply line that is both proof-of-capability and feedstock for the next step. The network treats it less as exotic tech and more as municipal infrastructure: routine, scheduled, unglamorous, and absolutely load-bearing for everything the Blueprint wants to do next.