Is material abundance actually possible?: Post-scarcity theorists

Keynes was half right

In 1930, Keynes predicted his grandchildren would work fifteen-hour weeks. He was right about productive capacity. Output per worker-hour in the US has tripled since 1950. The work week has not shortened. The surplus went somewhere.

We can tell you where. And we can tell you what happens when the master resource — energy — becomes effectively free.

Solar photovoltaic costs have fallen 99 percent in fifty years and the learning curve has not flattened. Below a tenth of a cent per kilowatt-hour, the energy cost of making almost anything approaches zero. Desalination turns seawater into freshwater. Vertical farms turn warehouses into cropland. AI turns cognitive work into a rounding error. The scarcity assumption — the foundation of classical economics — is becoming empirically false for an expanding category of goods.

The resource realists will reach for their spreadsheet. They are correct that lithium, cobalt, and rare earths face extraction constraints. We contextualize: every previous bottleneck was solved by substitution once the energy cost of the alternative dropped. Aluminum was more expensive than gold until electrolytic smelting. Physical foundations rearrange when the energy floor drops.

What abundance actually requires: cheap energy at planetary scale, automated production, universal clean water, a distribution architecture routing goods to need, and governance capable of managing the transition. We have the first three within reach. We have no credible path to the fourth and fifth.

The honest version: the physics is solved. The politics is lethal. Every previous abundance technology — Green Revolution, internet, antibiotics — was captured by the same distributional failures we have no mechanism to overcome.

Where we concede ground: We’ve predicted post-scarcity for seventy years. Our models are correct about capacity and naive about political economy.

What would change our mind: Solar, desalination, and automated food costs stopping their decline for ten years due to physical limits, not policy — curves flattening.

Read the full synthesis: Is material abundance actually possible?