For much of modern economic history, the boundary between private goods and public goods was relatively clear. That boundary is now becoming more porous.

This chapter explores how technological change is quietly transforming certain goods — information, energy, even some forms of production — from strictly rivalrous resources into something closer to shared infrastructure. As marginal costs fall, the logic of exclusive ownership can begin to clash with the physics of production.

The concept of “common wealth” is introduced not as ideology but as an analytical lens. Which resources truly require scarcity-based allocation? Which might benefit from hybrid or shared models? And where might we be misclassifying assets in ways that generate artificial constraints?

These questions sit at the heart of many emerging economic tensions. Understanding them may prove essential to designing systems that remain both innovative and broadly beneficial.