The durable positions in this field sit beneath the reactor rather than inside it. Conductor and tape capacity, cryogenic plant, refractory metals, lithium isotope separation, land, water rights and interconnection capacity are inputs every machine requires, whichever design reaches net energy first. Exposure of that kind pays on the progress of the sector rather than on the selection of its winner, and can be carried on a horizon long enough that a decade of slippage changes little.
Fusion is being partitioned by geopolitics before it is commercialised. The engineering base, the supply of superconducting tape and the fastest-building machines are concentrated in the East; the regulatory precedent, the grid and the industrial offtake sit in the West. A structure spread across several jurisdictions and answerable only to its own families can stand on both sides of that line at a moment when institutional capital is increasingly required to choose one.
Six generations of this capital came out of railways, fuel and power — assets bolted to a place, licensed by whoever governs it, and useful under every currency that has come and gone since. A reactor on the edge of the Sahara with a wire running north is the same asset in a newer form: immovable, sovereign in character, and valuable in precisely the conditions that destroy paper. Such things are underwritten for the grandchildren of the present partners, and priced on that horizon.