The debate over food's future is often a binary battle between tech-driven "reinvention" (CRISPR, AI) and a return to traditional, organic "de-invention." The optimal path is a synthesis of the two, merging the wisdom of ancient farming practices with the most advanced science to increase yields sustainably without degrading the environment.

Contrary to expectations of increasing societal complexity, the strongest selection for genetic variants predicting modern IQ test scores and educational attainment occurred between 4,000 and 2,000 years ago. In the last 2,000 years, including the industrial revolution, there has been no detectable selection on these traits.

While hunter-gatherer life seems cognitively demanding, their genetic profile predicts dramatically lower scores on modern intelligence tests. The subsequent rise in Europe's average score was driven primarily by the migration of farming populations with a different genetic setpoint, not gradual evolution within the hunter-gatherer lineage.

The way we grow food is a primary driver of climate change, independent of the energy sector. Even if we completely decarbonize energy, our agricultural practices, particularly land use and deforestation, are sufficient to push the planet past critical warming thresholds. This makes fixing the food system an urgent, non-negotiable climate priority.

Once a population reaches millions, every possible mutation occurs regularly. Therefore, the rapid selection seen in the Bronze Age wasn't enabled by larger populations creating more variants. Rather, it reflects sufficient time (thousands of years) for strong selective pressures to act on existing genetic variation.

Contrary to popular belief, cereal farming was less efficient for feeding people than horticulture. Its dominance stems from the necessity to develop complex tools, materials, and machinery (plows, kilns, irrigation) to survive in drier climates, which inadvertently drove technological advancement and empire-building.

Genetic data shows natural selection on immune and metabolic traits intensified dramatically 5,000 to 2,000 years ago. This suggests that high-density living and close contact with animals during the Bronze Age created a more powerful evolutionary pressure than the initial shift to farming.

Primatologist Richard Rangham's theory posits that early hominins used fire for cooking. This made food more energy-efficient to digest, freeing up metabolic resources that enabled the evolution of our larger brains. We didn't just get smart and then cook; we cooked, and that's how we got smart.

At the dawn of agriculture, resource stockpiling allowed high-status men to monopolize reproduction to an extreme degree, with genetic evidence showing a 17:1 female-to-male ratio. This intense inequality created widespread social instability among men, leading to the cultural innovation of monogamy to restore balance.