Haff conceptualises the technosphere as a planetary-scale system whose dynamics cannot be reduced to human intention. Its iconic contribution is six rules—of inaccessibility, impotence, control, reciprocity, performance and provision—that describe the asymmetrical relation between people and large technological systems. The theoretical advance lies in treating humans as essential but subordinate components within infrastructures of energy, communication, transport, finance and administration. Methodologically, Haff employs systems reasoning and coarse-graining, distinguishing behaviours observable at different scales while resisting anthropocentric explanations. The conceptual operation is scalar decentring: agency is redistributed from individual designers and users toward the operational requirements of the system itself. The wider bridge reaches Earth-system science, STS, infrastructure theory and political ecology. The technosphere appears quasi-autonomous not because technology possesses consciousness, but because its scale, complexity and metabolic demands exceed the control capacities of its constituent actors. Governance therefore begins with recognising dependency rather than presuming mastery.